Electric Mistress Flanger/Filter Matrix

gilmourish.com - Electro Harmonix Electric Mistress

Nothing sounds quite the same. The Electric Mistress flanger is unique and it has been featured on countless recordings since it hit the market in the late 70s. The pedal also defined David Gilmour’s tones between 1977-83. A period many consider to be the peak of Pink Floyd. In this feature we’ll dig deep into the magic and legend of the Electric Mistress.

The Electric Mistress was designed by David Cockerell (Electro Harmonix). The first model appeared in early 1976. David had worked for EMS, where he designed the world’s first multi effect – the Synthi Hi-Fli (used by David Gilmour during the Dark Side of the Moon era 1973-75).

Later, with Electro Harmonix, Cockerell also designed the Small Stone phaser and Micro Synth, among others, which were both based on the Hi-Fli.


Flanging refers to a tape reel’s flange or rim. The effect dates back to the mid 40s (Les Paul was one of the first to use it) but it was commonly used in the 60s and 70s by many bands and artists.

Flanging is achieved by playing back a recorded signal from two tape machines operating simultaneously and slowing down one of the playback reels about 20ms while recording onto a third machine. This slight delay caused a flanging effect – a swirly, metallic jet type of sound (listen to Lucy in the Sky with Diamonds). Slowing down even more would produce a chorus effect and ultimately a fast slap back delay.

Flanger pedals hit the market in the mid 70s. The pioneers being the ADA Flanger, Tychobrahe Pedal Flanger, MXR Flanger and the Electro Harmonix Electric Mistress.

None of these actually sound like the tape flanging. They often tend towards a chorus or more defined jet sounds. The Deco made by Strymon is one of the few pedals that is designed to replicate the true tape flanging.

The Electric Mistress

David Gilmour - Electric MistressThe first generation Electric Mistress pedals were produced between 1976-81. These were housed in Big Muff sized boxes powered by two 9V batteries (the 1981 version powered by a single 9V). Graphics and schematics changed over the years but the tone stayed more or less the same.

These early versions are known for their liquidy character and chorusy flanging. They were also known for being very noisy (even when they were switched off) and they had a nasty volume drop when engaged.

Like many of the older Electro Harmonics pedals, vintage Electric Mistress pedals are subject to inconsistent use of parts with varying quality. Two seemingly identical pedals can sound very different. Be aware of this when considering buying a vintage Mistress off EBay.

Check out the Electric Mistress Mystery Page for more details on each model.

The Deluxe Electric Mistress

David Gilmour - Deluxe Electric MistressThe Deluxe Electric Mistress was designed by Electro Harmonix engineer Howard Davis (who also designed the Deluxe Memory Man). It was offered along side the original Mistress between 1978-81 and later reissued in 1999 (to present) presented in a slightly larger box. Graphics and schematics changed over the years but the tone has stayed more or less the same.

The Deluxe feature a noise filter, making it less noisy than the original Mistress. It has a slightly more jet-like tone, like the MXR, with a hint more mid range and low end.

The current large box Deluxe Electric Mistress has a considerably darker and less transparent tone compared to the original 70s models and the 1999 reissue.

Check out the Electric Mistress Mystery Page for more details on each model.

David Gilmour and the Electric Mistress

David Gilmour must have been one of the first to use the Electric Mistress. At least to the extent that he did. Although not featured on the Animals album, a 1976 green logo V2 (second generation) Electric Mistress can be seen laying on top of his Pete Cornish pedal board during the tour rehearsals at the Olympia Exhibition Hall, London, UK in late 1976.

Pete Cornish performed extensive modifications on the board after the Animals tour, in October 1977, and built the pedal into the board. Although not confirmed it is fair to assume that Cornish modified David’s Mistress pedals to reduce noise and volume drop.

David Gilmour - Animals pedalboard

David Gilmour’s pedalboard designed by Pete Cornish pictured at the tour rehearsals at Olympia Exhibition Hall in London, UK, in late 1976. A green logo V2 1976 Electric Mistress is seen placed on top of the board, connected via send/returns on the board. The pedal was later built into the board and used for David’s 1978 solo album, The Wall album and tour and Final Cut. Notice also the ram’s head Big Muff to its right.

During the 1977 Animals tour David would use the Electric Mistress together with a “Ram’s Head” Big Muff on songs like Dogs and Pigs in conjunction with his amp rig consisting of a blend between Hiwatts and Yamaha RA200 rotating speakers.

The Electric Mistress was extensively used on David Gilmour 1978 solo album – notably on Mihalis (rhythms and solo), So Far Away (solo), Short and Sweet (main riff and rhythms), Raise My Rent (solo) and I Can’t Breathe Anymore (rhythms). The album is an early show case for the pedal and David’s late 70s tones.

David Gilmour - Studio pedals

David’s pedal rack pictured (2015) in his new home studio, Medina, located in Hove UK. Notice the Electric Mistress on the middle shelf to the right. Although looking slightly blueish, the logo is actually green as the mid 70s Electric Mistress pedals.

Although only briefly used on the recording of The Wall (mostly used as an effect on panned guitars and occasional licks), the Electric Mistress was once again used extensively during the The Wall tour in 1980-81.

David had two pedal boards on stage – his main 1976 Pete Cornish board and a mini board, also designed by Cornish, used while performing outside the wall during the second half of the show. Both boards featured an Electric Mistress.

David’s Wall stage setup featured his Hiwatt amps, WEM cabinets and two Yamaha RA200 rotating speaker cabinets. During the 1981 leg of the tour, he also used two Boss CE2 chorus pedals for stereo spread. All this combined with the Electric Mistress. The amount of modulation borders to being ridiculous but it really defined his huge tone for that tour and songs like Mother, Comfortably Numb and Run Like Hell.

Final Cut (1983) is perhaps one of the most honest sounding albums in terms of David Gilmour’s guitar tones. Very little studio processing was done to the tracks and the Electric Mistress can be heard throughout – notably on Fletcher Memorial Home (solo) and Not Now John (solo).

Rattle That Lock - Electric Mistress

David’s Rattle That Lock stage rig feature a vintage Electric Mistress linked with a Lehle parallel L for volume boost. The Mistress was used, with a Big Muff, on Comfortably Numb.

David’s exhausting 1994 stage rig did also feature an Electric Mistress. It was built into a custom rack by David’s long-time technician, Phil Taylor. The unit also featured two Boss CE2 and a Demeter Tremulator. It is not known whether David actually used the Mistress during the tour or not – although Pulse and available bootlegs from the tour suggests that he never used it.

David’s new home recording studio, Medina, in Hove, UK, feature a large collection pedals, including an original Electric Mistress (probably a 1976-78 V2-V4 model).

A vintage Electric Mistress (the one seen in David’s studio?) is also featured in David’s 2015/16 Rattle That Lock stage rig. The pedal is linked up to a Lehle parallel L, which operates as a volume boost to compensate for the Mistress’ slight volume drop. The Mistress was used on Run Like Hell and, in combination with a Ram’s Head Big Muff, on Comfortably Numb live performances.

Check out the David Gilmour Album Gear Guide for complete setups on each album and tour.

Setting up your Electric Mistress tones

Flanging is not a subtle effect and some find it too overwhelming – especially for replicating David Gilmour’s tones. But, that’s pretty much the nature of the effect. Chorus, although sounding slightly different, is a more subtle effect.

When replicating David Gilmour’s tones it’s also important to understand the difference between when he used rotating speakers, the Mistress or both.

It may not be that easy to tell the difference but the intro lick on Mihalis is the Mistress alone, while the intro on Raise My Rent is the Yamaha RA-200 rotating speaker. Most of his lead tones on the Is There Anybody Out There live album is both the Mistress and Yamaha.

David Gilmour - Electric Mistress settings

Here are my favourite settings for each model. I prefer a slightly more jet kind of tone. You may want to adjust this slightly for a more airy Gilmour tone. NOTE that my 1977 Electric Mistress has 50% at noon. The potentiometers vary from model to model.

Like most modulation effects, the tone you get from the Electric Mistress depends on what pickups, amp and other effects you use with it. Brighter amps, like Fender, and low output pickups adds a high end sparkle and a more noticeable swirl.

On darker amps, like a Hiwatt, the Mistress produce a more mellow tone that also blends much better with Big Muffs and fuzz pedals. This combo is naturally the closest to David’s 1977-83 Mistress tones.

Combined with pedals and pickups that has a boosted mid range, like Tube Screamers, Rats and humbuckers, the Mistress appear darker and even a tad boomy, although this combo often works better on smaller amps and typical bedroom setups.

The Electric Mistress can produce anything from subtle tape-ish flanging to more extreme rotary tones. David Gilmour seemed to prefer something in between. I prefer the Deluxe over the original Mistress. Part because I find the original to be too noisy and thin sounding but I’m also partial to a slightly more jet kind of flanging.

Keep in mind that the original 18V Electric Mistress had differently positioned pots. That means that 50% effect is not always at noon as you’d expect but alternating between 3, 6 and 9 o’clock. See the Electric Mistress Mystery Page for the different pot ranges for each model.

See picture above for my favourite Electric Mistress settings and the featured YouTube shootout clip for Animals, Wall and rotary settings.

Clone that Mistress!

There aren’t that many clones of the Mistress on the market. One of the reasons is that the SAD1024 chip used in the original models is hard to come by in large and affordable quantities.

Some have tried though, with varying success. However, all the quirky little things that one often want to modify or change – noise, tone loss, hardwire bypass etc – are also what makes the mojo and a perfect clone might not be that perfect after all.

David Gilmour - Hartman Analog FlangerAlthough no longer made, the Hartman Analog Flanger is one of the very few clones of the original mid 70s Electric Mistress. Its authentic sounding, with the same airy character and they’ve managed to filter most of the noise and fix the volume drop. It also feature true bypass. Like the original, the Hartman sounds great for cleans but a bit thin and sometimes harsh with high gain pedals.

David Gilmour - Mooer ElecLadyThe Mooer ElecLady/E-Lady, although cheap and incredibly small, offer perhaps the most convincing replication of the Electric Mistress tone. It’s closer to the Deluxe, with a distinct jet flanging but it also has some of that airy character of the mid 70s Mistress.

The Donner Jet Convolution is also worth checking out. It’s actually a clone of a clone – the Mooer ElecLady – offered in the same mini pedal format. The price is $30 from China.

David Gilmour - Deluxe Electric Mistress XONot a clone as such but Electro Harmonix recently released the Deluxe Electric Mistress in their smaller case XO series. This upgrade deals with the volume drop and of course the smaller footprint is a bonus. The tone is close to the bigger box Deluxe only more chorusy. The ElecLady is in my opinion a better buy.

In recent years, Electro Harmonix has also released other versions of the Electric Mistress – Stereo Electric Mistress and Neo Mistress. These are spin-off products that has little in common with the original Mistress and Deluxe models.

Please use the comment field below and share your thoughts and experiences with the Electric Mistress!

162 Responsesso far.

  1. Howard Gillespie says:

    Hi Bjorn,
    Correction to my earlier comment.
    My DLX is ‘78 and I should have said have you reviewed the newer modified for more treble version of the Retro Sonic? I have seen your other reviews.
    Keep up the good work!

    • Bjorn says:

      The updated version has a tad more top end but the difference is subtle and hard to tell apart in a compressed YT video.

  2. Jon Supner says:

    Hello Bjorn, I use the eleclady and placing it after the muff it sounds a bit thin and annoying, plus vol drop. what’s your thoughts on placing it before the drives and fuzz. Did David ever do that. I have a strat sss into board into hiwatt t20 and twin reverb. Hiwatt 112 cab and twin had celestion v30 1×12. Thank you.

    • Bjorn says:

      Hmmm… I don’t find it thin at all. If anything it adds warmth and a bit of mid range. In my set up at least. No, David always kept his after gain pedals but it’s fun to place it in front as well. Eddie Van Halen used to do that with his MXR Flanger.

  3. Gilles Kraemer says:

    Hi from Canada,
    Love your youtube channel and web page!!! I was wondering what’s your opinion about the ElecLady/E-Lady versus the newer Foxgear Maitresse flange? with one to you sounds closest to to early version of the EM?

  4. Dimitris Kovaios says:

    Hi, Bjorn!
    I hope everything is fine!
    Compared to tape doubletrack-style flanging, where you adjust the decks’ delay, mix and maybe some pitch modulation/tape wow, flanger pedals confuse me.
    Regen means feedback of the dalayed signal?
    Also, on a mistress I don’t get the Range and Color knobs…
    Delay offset between the two signals and feedback, or mix respectively?

  5. Mike says:

    Hi Bjorn, I recently got an e-lady which sounds good. I also have a Dawner Prince Pulse on order which I’m excited about. I was wondering if you think the pulse is a good substitute for the flanger or if having both is worth it. Do the two pedals sound good together or is it redundant having both on the same board? Thanks for all the awesome reviews as well!

    • Bjorn says:

      In terms of replicating David’s tones, the Pulse should be set for a low mix adding just a hint of modulation to create a smooth texture. David would mix his rotary cabs much lower than the Hiwatts both on stage and album. The Mistress is an effect you’d use for certain songs or parts, much like how you’d use a phaser.

  6. Philip Keat says:

    I have a version 2 Electric Mistress (two 9v battery leads) I bought new way back when. I seem to have misplaced the power supply is had with it. No manual either. Does anyone know what the voltage requirements are for a power supply?

  7. Vincenzo Di Lauro says:

    hi Bjon. what could be a good replacement for the lehle? Boss LS2?

  8. John Richards says:

    What Is the best sounding version V4 or V5? I had the V4 but the switch was’nt working so well so I returned it. Im after the Frusciante tone and I know that he uses the V5. Any suggestions?

    Ive also seen V4’s with hardwired plugs and adapators. I thought they were only produced hardwired?



  9. Francesc Bertran says:

    …I also have an old EH EM V2 1976 with the volume drop mod and it sounds great. But it has a lot of noises and clicks going on when paired with overdrives.

    Thanks again.

    Best wishes.

  10. F.Bertran says:

    Hi Bjorn,

    About the Eleclady:

    Do you know what are the two internal trimmers for?
    Is there any way to fix the slight volume drop?

    Many thanks and best wishes !!!

  11. John says:

    Hi, You seem to know alot about electric mistress. I purchased mine brand new in the early 70’s. I had someone play through it at a local guitar center and he said it works. I heard noise, but what do I know. I believe this version is a v1 with red and blue letters. The switch in the back of the unit turns power on and off. The condition is very good +. Would you have any idea of its value?

    • Bjorn says:

      I don’t want to share any thoughts on value. Obviously, value depends on many things including condition and how many are available at the moment. Check EBay to get an idea.

    • Paul D'Amato says:

      Dude, you have th every first rendition of the Mistress…don’t sell it ! Very few were made :-)

    • Bob says:

      That pedal is worth a lot of money! Could easily sell for over $1000. Probably closer to $2000 because I know some people who will pay top dollar for a V2, not even a V1 like yours. The red and blue print is SUPER RARE

  12. Chris says:

    Hey Bjorn,

    Once again, job well done. The Mistress is a unique flanger, and finding a flanger that is really authentic to Gilmour’s tone is harder than one might think. I almost purchased a Stereo Electric Mistress; thankfully, I read an earlier piece you did on the Mooer Elec- Lady/ E-Lady. I ended up with the E-Lady, and it’s amazingly spot on. And for the cost (I got mine for under $50), it’s one of the best clones out there of any pedal. I have two Mooer pedals on my board (the other being the Triangle Buff), and I’ve been pleasantly surprised by how good some of their clones of classic pedals are. Again, thanks for the review. Cheers!

  13. Tim Larwill says:

    Hi Bjorn,

    Tim from Retro-Sonic…. I have a new Flanger out that is spec’d to the Electric Mistress V2. Would love to get your opinion on it. If interested please email me at info@retro-sonic.com


  14. Craig MacKenzie says:

    Hello Bjorn,

    I have a 9V EHX (1981) Electric Mistress clone. I was wondering if the flanging in this pedal pushes the amp to break-up. As I wind up the volume on my guitar, the amp pushes into distortion. This is with no other pedal in the signal chain. I have the last big box iteration of the EHX Deluxe Electric Mistress and the amp doesn’t break-up as I turn up the guitar’s volume. Any thoughts? Is the 9V Mistress prone to drive the amp?

    Kindest regards.

    • Bjorn says:

      I’ve never had any experience with that. If anything, there’s a volume drop.

    • Gertjan Vosters says:

      It could be that de bias of the BBD is a little off. This could be because of high output pickups or because of someone having messed with the trimpots. Does it drive when you pick softly?

  15. Keith Bragg says:

    Hi Bjorn,
    Do you have a recommendations on settings for the XO Deluxe Electric Mistress? Would it be similar to the posted Older Deluxe settings?

    • Bjorn says:

      To be very honest I haven’t found any settings on that one that sounds nice. It’s a good flanger, I’m sure, but it’s not a Mistress. Sorry.

      • Matthew says:

        I’ve found that if you have all knobs low, between 8 and 9 o’clock, the XO does produce a very nice mistress sound. It’s like the E-lady, you’ve got to find the sweet spot.

  16. Frank says:

    Hi Bjorn!
    Basically I am playing in my bedroom using an Hiwatt td20. Playing the Comfortably numb solo using my Electric Mistress deluxe (the big box) and a Big Muff from 1977 i think, I am not obtaining the same sound than DG in Live al Pompei. What Kind of settings should I use for the Electric Mistress? Should I set the filter matrix on? Thanks

    • Bjorn says:

      Do you know what version the Mistress is?

      • Frank says:

        Hi, I think is a V5 version

        • Bjorn says:

          OK. The V5 is a bit darker sounding than the original model an the ’99 that I use. There should be some trim pots inside but I don’t know if you should fiddle with those. If you think it sound dark then maybe you want to check out other versions, like the excellent Mooer E-Lady. Anyway, the settings suggested in this feature should be a good start.

  17. ronnie says:

    hi if you have chance try out the longamp Roxanne pedal from longamp this is the real clone of the mistress flanger I purchased one from longamp this is one of my best pedals

    • D says:

      I just got one and its really good. Mine has some clipping/distortion when I strum chords on bridge into clean amp though. Also lops off some bottom end. Does yours clip/dostort a little?

      • Taylor Hutto says:

        I’ve got one coming next month. Can’t wait to try it out. Enjoying my Elec Lady though. This longamp Roxanne was an impulse purchase, but mainly curious. I’ve read some reports of very slight internal trimmer adjustments to improve tone, but haven’t read anything about clipping and distorting. Is that bridge pickup you’re using really hot?

  18. louisnd says:

    Hi Bjorn, thanks again for sharing such wonderful work and thoughts.

    I was wondering if you had the chance to try and compare the MXR micro flanger, the one with only 2 buttons?
    Guess I will made up my mind at some point and try the elady – but before I do so I found from some reviews it sounded close enough on low settings …


  19. BluesHound says:

    Hi Bjorn,

    I have the last big box version of the DEM (V5?) and to be honest I’ve never really got on with it. On your recommendation I got a Mooer e-lady and I’m really happy with it, much better than the EHX (to my ears).



  20. Anmol Singh says:

    Hwy bjorn,

    How are you!! With the original mistress and hartman discontinued i think you need to hekp us with more/ other options for flangee pedals!


    • Bjorn says:

      Well, there aren’t that many out there. The EHX models doesn’t really compare with the older models and to be honest, the Mooer ElecLady does a very fine job.

  21. Rich says:

    Hey man

    When it comes to the electric mistress should it be placed after big muff and over drive (but before delay) .. or before gains and everything else..

    I’m referring to the mother solo.

    • Bjorn says:

      David had his after the gain pedals and before the delays. This is the common way to place chorus and flanger but there are no rules.

  22. StratWiz says:

    Looks like the Mooer ElecLady Flanger is sold under different labels for different prices, including Donner Jet Convolution Flanger & Rowin LEF 612.
    See their PCB picture comparison:

  23. Chad from Dallas says:


    I have a few questions. The first is, How is the DEM V4 with the misprint? I can get one for a pretty good price, but wasn’t sure it was in the range of the so-called good ones. The second question is about the TC Electronic SCF (Chorus/Flanger). I have read some great reviews of it and it has been around for 30 years. It is analog for both chorus and flang. Are you at all familiar with this pedal. The sounds on the video clips are good, but then again they often are. Can it do what the Mistress and DEM do for Gilmour tones?


    • Bjorn says:

      As far as I know, the misprint model is the same as the later V4. They only changed the error on the box. The SCF is a classic and well worth checking out, I wouldn’t say that the flanger is dead on a Mistress but the chorus is super sweet.

  24. Silvio says:


    What do you think? This is a fantastic new entry!

    • Silvio says:

      Hello’? Is there anybody in there? :-)

    • Alex L. says:

      I have seen the gutshots of the above pedal and of both versions of the Hartman (one with the SAD1024 and one with the MN3007). All of them appear to be clones of the 9V (version 6) Electric Mistress from 1981. They are not clones of the original 18V (or rather 12V) version used by Andy Summers or David Gilmour. The version 6 actually has better designed (quieter) clock circuitry than the earlier versions, but the audio path let’s through noticeably more low-mids than the original. It also controls differently. The original can produce large sweeps at fast rate. That behaviour was tamed in the version 6 at the expense of pitch warble at high rates. Having said that, for most settings it won’t make much difference, and letting through more low-mids could be a plus, depending on what you are feeding it.

  25. Silvio says:


    hello bjorn: what do you think? Sure the mistress XO is not suitable for the tone Gilmour? regards!

    • Bjorn says:

      Well, this guy’s playing is superb! I can only judge the pedal from my own experience and I found it hard to dial in that smooth liquidy tone that made me fall in love with the Mistress 20 years ago. The XO sound a bit too overwhelming and hard to tame for my taste. Teh Mooer ELady is closer in my opinion.

  26. Don says:

    Hi Bjorn,
    I recently got an early 1999 Deluxe reissue V4 that has the misprint and internal transformer. I`m sure the knobs have been removed at some point in time and I don`t think they were put back in the correct position. Can you tell me where the knobs should be pointed when they are turned all the way counter clockwise?

  27. JohnnieBoy says:

    Not liking the Electric Lady at all. I love my Deluxe Mistress.

    • Marco says:

      Hi Bjorn, All:
      my name is Marco, new here. Thanks for your very accurate tips on this subject.
      I’ve seen that Mooer E-Lady recently replaced the Elec Lady. I’ve seen that it’s not common opinion that the new E-Lady has the same “identical” sound of Elec-Lady….Has anybody done a comparison between the two? I’d like to know whether they’ve the same circuit inside… thanks a lot

  28. Bram says:

    It’s a real shame that XO series DEM doesn’t quite capture the essence of the earlier versions. It seems everything is turned up to “11” on it. Rate really only has one usable setting (7:30-8am), Color is just always too heavy and saturated. and I’ve resorted to playing around with the trimpots. I’ve found some good tones doing this, but by no means am I an expert. Any way in which you might be interested in returning to this question and perhaps offer some recommendations on how to adjust the trimpots on the XO series to get as close as possible to the ideal Mistress sound?


    • Bjorn says:

      I don’t own the XO Mistress myself so I can’t really comment on the trim pots. I know some claim that a bit of tweaking helps but again, I’d have to experiment with that myself. Out of the box I wasn’t very impressed with the pedal. Sounded more like a chorus than a Mistress to me.

  29. Howard Forton says:

    The elec lady, Boss RT20 and EHX small clone in various combinations makes for some great Gilmourish tones 👍🏼

  30. Lorne says:

    I have a mid-2000s version of the DEM and recently bought (and promptly returned) the XO version. Almost any combination of knob positions on the big box Dlx yields musical results but the XO version sounds too over the top…the sweet spot for the XO is for all 3 knobs to be below the 9:00 position. That’s it. Perhaps at 24v, the big box has more headroom. The XO was a major disappointment. I guess I keep rolling along with the big box Dlx, then.

  31. Hey, (Bjorn I think) I’m looking for a way to get that nice tone from animals and I thought that a rotary speaker substitute would be a good option. I’m thinking about the electric mistress deluxe. First post, thanks for this website!

    • Bjorn says:

      Cheers! I think the Boss RT20 is the best way to simulate those rotary sounds. It has that chorusy flavour and you can control the amount of the effect. Other rotary sims has a more tremolo sound, which is more authentic but not that suited. The Mistress is much more dominating and although he did use one extensively on the Animals tour it is a different effect compated to a rotary.

  32. I have tried a lot of combinations. So far the best closest tone i got is with my modded 1979 standard mistress and my 1979 Deluxe version. What i am trying to figure out is what Pete cornish did in order to reduce the noise on the standard mistress. I saw David in 2015 and for brief moments i could hear the characteristic “swoosh” the standard has in the background but with way less “hiss”. I am assuming my SAD1024 is oldie and noisy but i wonder if someone has a clue what has been done on David’s Standard Mistress. (Like true bypass, metal film resistors and poly capacitors.)

    • Bjorn says:

      I haven’t seen or heard anything regarding the original Mistress that’s in David’s current board. Cornish has mentioned that he did do some minor improvements to a similar pedal that David used during the Animals/Wall era but I’m not sure whether this is the same pedal as he is using now. Probably not, as the old one was built into a Cornish board. The old circuit was too small to have room for a noise filter but it’s fair to assume that they’ve addressed this. Also, David’s 94 rig did feature a Mistress that guitar tech Phil Taylor built into a rack unit. This one had a custom noise filter.

  33. Silvio says:


    The mooer elec lady is the same the electric mistress 1981.
    Is not reissue de luxe electric mistress. Sound is very different!

    • Bjorn says:

      I think they all sound very similar but he’s comparing the pedals with the same settings on each, which is a bit misleading as each of these models has different aligned pots. In this clip that I’ve recorded, I managed to get very similar sounds with the ElecLady and Deluxe with different settings on each. My conclusion is that the ElecLady does a very good job at replicating the sounds of both the small box and Deluxe.

  34. Bjorn, have you had the chance to try the Moog MF Flanger? I wonder how that would perform.

  35. Anton says:

    Have you tried the strymon deco to replicate those tape flanging effects?

    • Bjorn says:

      Yes, you can get some nice chorus tones with it but the flanging is not that suited for Gilmour’s tones… great sounding tape flanging though.

  36. I’ve just done a video comparing the Vintage Deluxe Electric Mistress with the new XO model. I found both to be quite excellent. I’m not quite hearing the massive difference but maybe it varies from unit to unit?

  37. Henk says:

    Hi Björn,

    I’ve tried them all, my favorite is the Hartmann. A problem I have with all of the flangers (and that I really would like to get rid off), is the very thin sound when combined with a muff (which I also tried a lot of).
    Especially the higher notes seem to be “dying” in a very thin, spikey sound.
    I’ve tried muff into flanger and reverse but I can’t get rid of it. Do you recognize this and do you have any advice?

    Thanx in advance!

    • Bjorn says:

      That’s true with the original early version, which the Hartman is a clone of, but my experience with the Deluxe and clones like the Mooer ElecLady is that they work very well with distortions and Muffs.

  38. Ross says:

    Hi Bjorn, I recently bought the New Mooer E-lady Classic Analog Flanger & compared it to my Hartman Flanger.
    I found that the Mooer gives more lower end bass sound than the Hartman. Switching between the two of them the Hartman sounds thinner and has a more midrange/upper sound which is the sound I have been used to, so just wondering if this is something you have found also that the Mooer gives a slightly duller deeper sound?
    I have used your recommended settings on the Mooer but a bit puzzled at the result!
    Cheers, Ross

    • Bjorn says:

      Hi Ross, yes they are different but keep in mind that they are based on two different Mistress models. The Hartman is a version of the late 70s Mistress, which had less low end and more of that swirly flanging, almost chorusy tone. The Mooer is closer to the Deluxe Mistress, which is darker and perhaps closer to the MXR.

  39. Brian Deren says:

    Honestly, I’m in the process of re-purchasing a Hartman. I believe mine was a “second run” with the Panasonic chip, but it sounded absolutely perfect, I stupidly sold and later bought an E-Lady, not even the same ballpark, imho….I use it primarily for early Lifeson stuff, but it was spot on for Summers and later Floyd, especially Final Cut. They’re hard to find and not cheap, but anyone really serious about this soubd will appreciate its accuracy and unmatched musicality, it’s truly heavenly…I don’t buy old beat up “classics”, too unreliable and inconsistent as has been mentioned, buy the Hartman!

  40. Heshan says:

    Hi Bjorn. I just picked up a Deluxe Mistress XO today. To be honest, I quite like it at some settings. However, with the Range and Rate knobs raised above 10 o’clock, (with the color below 12 o’clock), it immediately starts to sound weird. Kinda detuned (?) – I’m not sure if I’m describing it right. Is this normal, in your experience with this particular pedal?

    I’m wondering if I should give it a chance, or simply go digital with the TC Vortex and use one of the available Mistres toneprints

    • Bjorn says:

      That’s my experience with it too. The bigger box Deluxe and Mooer doesn’t sound detuned at higher settings, but the XO and all of the other spin offs from EHX does that. You can dial in some decent tones with the XO but I think it’s a different pedal than the bigger box Deluxe. Get the Mooer ElecLady :)

  41. Bruno says:

    Hi Bjorn,

    Regarding the third part of your video ( “Deep Chorus flanging with Big Muff” ), do you think I can get that tone of Mother’s Solo( amazing by the way) with a analog chorus pedal ( like a Mooer Ensemble King) instead a Eleclady Flanger? That’s because a chorus pedal is perhaps more versatile, also for other genres and tones…and I may have to choose which one to buy. On the other hand, be able to nail that David’s Tone ( Mother’s solo) is very important to me. What do you recommend? Thanks a lot.

    • Bjorn says:

      Since you mention that the tone is important for you to nail, I would say no. A chorus can be a good replacement for a flanger but it sound much more subtle and it often has more mid range, making it sound darker. Depends on how picky you are. For THE tone, I would definitely go for the ElecLady.

  42. Hey Bjorn, in your “Favourite Settings” photo of the Electric Mistress, ElecLady and Deluxe Mistress; do these different knob settings yield a similar sound between all three pedals? Or do you have a different sounding favourite setting for each pedal? Just checking out the Mistress Mystery page and noticed how each one has different positioned pots and pot tolerances. Thanks Man!

  43. stuart jeneson says:

    Hi Bjorn, I`ve just bought Electric Mistress Filter Matrix Deluxe from EBay, so it should arrive soon. It is an 80s Mistress above you mentioned the mid 90s are the ones to look for. Will the 80s one do a better job than the current models. Cheers Stuart.

    • Bjorn says:

      I’ve tried MANY different Mistress pedals and they all sound a bit different but yeah, the early Deluxe models sound closer to the ’99 than the current.

  44. Rob says:

    Hi Bjorn, I’ve seen mention a few times on other websites of the Boss HF-2 Hi-Band Flanger being able to conjure up EM sounds (and, according to other stuff I’ve read on that Internet thing, it started production only a short while after EHX went bust in the 1980s…). Have you tried it? And, if you have, what’s your opinion? Cheers, Rob

    • Bjorn says:

      I’ve never tried it but based on the reviews I’ve heard it seems to have some of that Mistress character. It’s hard to tell how accurate it emulate those sounds purely based on YouTube clips but I guess you can tweak it for similar sounds. Anyway, if you’re looking for a great sounding Mistress clone then check out the Mooer ElecLady :)

      • Rob says:

        Hah! That’s weird, I just bought a second hand DEM reissue today (which had been modded by Howard Davis) and the guy threw in a Mooer ElecLady with it. What are the odds? Thanks for the tip, I’m looking forward to playing with it now…! Cheers again, Rob

    • Antony P Faulkner says:

      For anyone still reading in 2019…. I think the Boss HF2 is the cheapest, widely available option to get the watery EM tone that mixes well with Muff etc to get that sweet singing lead tone of DG. Like the EM it shelves the higher spectrum and cuts bass, removing the Muff mud. Definitely get one if you can and try it. It’s modulation is also decent, but not quite as “quirky” as the EM, but it will cop excellent CE1 tones with the Res control backed off and Manual set to moderate levels (around 25%-40%).

  45. Gabriel says:

    Hello! Between a original Electric Mistress and a clone which you do you think is a better buy? If it is a clone, which?

    • Bjorn says:

      The Mooer ElecLady is definitely your best buy. The price should fit any budget and it sounds really good. The current Mistress offered by EHX doesn’t sound like the old ones and buying a vintage unit off EBay is risky business… you never know what you get. Those old EHX units doesn’t stand the test of time very well.

  46. Vincent Morel says:

    Would be great to try the new Source Audio Mercury Flanger to see if we could achieve Gilmour Flange tone… Probably in fact but who knows!

  47. Ed says:

    I got one of the old ones like Gilmour with the drop out fix mod, any serious bidders? lol! ;)

  48. Hi Bjorn

    Great article – only problem is I now own a 1980 Deluxe Mistress and a Donner Jet Convolution
    skint now but great sounds

  49. Hi Bjorn. Have you tried the tc electronic Vortex flanger? They reckon it can sound like a Hartman/ mistress. If it can, with a tone print library too. Might be a good buy. I need a flanger.

    • Bjorn says:

      Hi Howard, you can tweak it for a decent Mistress tone using the tone print. I don’t own one so I can’t describe it in detail but I managed to get very close when I tried it :)

  50. Chris Steenson says:

    Hi Bjorn,

    I wouldn’t totally write off the Deluxe Mistress XO quite yet; when I first bought mine as a more convenient version of my large box 2000 Deluxe Electric Mistress is was slightly disappointed by the more chorusey tone; but I found an internal trim-pot that I think controlled the delay time on the flange, because now it sounds almost indistinguishable from the large box model (It does roll off a little of the high-end compared to the large box, which I’m a little annoyed at)

    The only problem with adjusting the trim pots is that you’re probably going to void the warranty if you want to try it out. I did think it made a huge difference to how it sounded (Mind you, the only reason I didn’t buy a Hartman Analog Flanger as a smaller boxed 9V Electric Mistress was because I can’t find one for sale in the UK)

  51. Hi Bjorn, an interesting article and alternative ways around getting a simular sound without owning an original. I also bought a stereo electric mistress but I get what you said about it not being a true flanger more a chorus effect. Still I can get a donner and have some fun without breaking the bank…thanks For the

  52. James Kerr says:

    Hi Bjorn, I have a 1999 Electric Mistress Deluxe version 4 with the round power cord. The problem is that the bushing that holds the cord in place is missing and I can’t seem to find one. I even called Electro-Harmonix tech support and they had no idea where I could get a replacement. Do you have any idea where I can buy one? Thanks!

    • Bjorn says:

      I have no idea, to be honest. Check out the Electric Mistress Mystery Page and maybe they can help :)

      • KEITH says:

        If by bushing you mean the black nylon bushing that surrounds the cord, and your cord is just sitting loosely in the hole in the metal box, you should be able to pick them nne up at any electronics supply house. Take the pedal with you, as they use two measurements, the hole, as well as the guage of cord. You might even find one at Radio Shack, but I’d check for local suppliers that cater to techs. I have a ton of them, but don’t they’re the right size. I think you should be able to find one in no time at all!

        Good luck, KEITH

  53. KEITH says:

    I found that with each setting that one seems to sound better than the other, but I he original definitely got much thinner when the Muff was introduced. The Mooer sounded very good, but I think the major difference between the Mooer, and the deluxe, is board space, and the Mooer did sound great clean, but IMO , I’ll be sticking with my deluxe, and probably get a Mooer for my own shoot out, and may use it for recording cleans. To sum up, I think overall, the Deluxe wins. However, the other two have strong points that sound better at certain settings, but the Deluxe when bested, isn’t far behind. Very good article,

    Thanks Bjorn, KEITH

    • Bjorn says:

      Thanks Keith! I think they all have different qualities. Personally, I like the Deluxe better too but although the original Mistress sounds thin, there’s something about that tone that’s instant late 70s Gilmour :) I would assume that his was modded.

  54. Joaquin Velazquez says:

    Hi Bjorn, i have one doubt. In your video how did you power your green logo mistress?? With two 9v batteries didn’t you? I would assume that. The thing is i’m buying a green mistress myself and i don’t want to use batteries. What’s up with the little plug that is between the IN and OUT jacks?
    Thank you. Greetings from Argentina. Your site is great!

    • Bjorn says:

      Hi Joaquin. Yes, I power mine with two 9V batteries. I’ve never tried to power it with an adapter but I think you can use a mini jack converter for the small hole. Try it… I’m not sure.

  55. Carlos says:

    Hi Riis … still enjoying your record Lullabies … my quetion is: could you suggest me a setup for a gilmourish sounding Hartman flanger?

    • Bjorn says:

      Thanks, Carlos! I don’t own one myself and it’s been a while since I played one. I do remember that having all the controls around 10:00 o’clock (you might want to tweak that slightly) was a good start.

  56. Matt says:

    I consistently liked the sound of the Eleclady more than the two vintage pieces:)

    • David says:

      Bjorn….really great post. You should do more comparison videos with in depth observations. I really think it would really help a lot of people. I use the DEM for Gilmour and Summers. Great tone but definitely had a few deficiencies.

      After I sent it to Howard Davis for his full mod treatments? It sounds gorgeous. It has the original tone but does not have the volume drop and plays well with both single coils and humbuckers. Not to mention full bypass, noise reduction and LED! :)

      Thanks again!

  57. Nate says:

    Thank you for the article! This is actually my first post on here. I love this site! One of my favorite Gilmour tones actually comes from “Dogs”. Around 7 minutes and 30 seconds into the song their is this funky rhythm guitar that comes in on the “and its too late to use the weight you used to need to throw around…” verse.
    So my question, is there a mild flange on that guitar part, the electric mistress? I love the tone but am unsure what exactly I am hearing. Thank you so much!

    • Bjorn says:

      Hi Nate! Thanks for posting! David recorded Dogs with a Telecaster that was split between a Yamaha RA200 rotating speaker and a Hiwatt. He also used a Big Muff for the solos. The part you’re referring to is the Yamaha. As far as I can tell, there’s no Mistress on Animals. Most of David’s guitar work was also recorded before or simultaneously as the Mistress hit the market, so it’s very unlikely that he owned one until very late in ’76 as we can see for the tour rehearsal pictures in December.

    • justin sloj says:

      that part is hauntingly amazing. i look forward to that rhythm part every time i listen to that song. waters once did a version of animals with another band in the 90s and despite there being like more than twice the amount of musicians needed… they kind of skipped over that funky part. it finally confirmed my belief that while roger waters is an amazing composer. he never truly did realize what an alchemist gilmour was. that part blows my mind every time i hear it.

  58. Felipe says:

    First of all, I’d like to congratulate you for this excelent website! I always learn something new whenever I come here!

    I never played original Mistresses but I do have one the earlier Hartmans with the Reticon chips in it. I’m not a Gilmour fan, but I dig early Police and early The Cure (I believe they used a Mistress on their second album, “Seventeen Seconds”).

    My experience with the Hartman Flanger is exactly what you described: it sounds like what I hear on those records, but can’t handle higher gain distortion and powerful pickups – even when using a 12-volt adapter, which was a suggestion from Mr. Hartman himself. Whenever I want to use a flanger with humbuckers I reach for my A/DA Flanger 2009 reissue.


  59. I’ve tweaked with the mooer a lot, but i miss the sweetness of the deluxe mistress. It’s too harsh for me. But i had the chance to put my hands on an 83 Ibanez FL9 wich works perfectly, and with it’s 4 knobs i was able to get the tone i was after. Highly recommend that pedal!

    • Bjorn says:

      The ElecLady can sound pretty bad, at least for David’s tones, if you don’t hit the sweetspot. I’ve found that the range needs to be all the way down and the colour just above 9:00. The rate knob is also very sensitive. I’ve set mine to around 2:30 and it sounds pretty good.

  60. Wyatt Murphy says:

    I’m really happy that the ElecLady did so well, as I got the same results. I have a nice Deluxe EM, and the ElecLady is pretty darn close. The DEM is a little sweeter, but you have to really listen to hear it.

  61. Eric Nyberg says:

    Bjorn et all.
    Last fall I bought an Empress Nebulus modulation pedal and I am very pleased with it. It can do phasing, vibrato-leslie and flanging very well and an added plus (for me at least) is the mix control. It really helps with C-Numb, The Thin Ice and Another Brick In the Wall 1 and 3. Just something you should check out.

  62. Kim Foster says:

    Hi Bjorn
    Firstly what an awesome website!!
    This is my first comment although I’ve been using this site for a couple of years now.
    It has helped me enormously in learning about tone and how to create a “Gilmourish” sound.
    I have been thinking about purchasing a Mooer Electric Lady as I have been getting by with a Boss chorus pedal but after reading this guide I wonder whether I’d be better getting a rotary sim?
    Just thinking this may cover a wider spectrum of David’s sound.
    I just play at home, have a Gilmour Strat, R9 Les Paul and have a Fender Super Champ X2 and Marshall SL5.
    It would be great to get your advice Bjorn.
    Ps, which is the better sim the Lex or the Boss??
    Keep up the great work
    Regards Kim,
    Brisbane Australia

    • Bjorn says:

      Hi Kim! Thanks for posting! Flangers, chorus and rotary are different effects so it depends on what tone you want. Between rotary effects… The Lex is no doubt one of the better sounding rotary sims out there but David always used to blond his rotary cabs with his amps, so the tone he got was much more subtle and chorusy than plugging straight into a Leslie – which the Lex really is. I’d go for the Boss RT20. It’s not the best rotary sim but it nails David’s rotary tones :)

  63. Reagan says:

    Hi! Great Mistress writeup + demo, it’s just what i have been waiting for! :) After trying all the models (bar the XO EM), i still love the 18V original the most. The issue is the volume drop (fixed by my G2 looper), the massive bass-cut + excessive treble added. Other than that it is the most amazing, liquid sounding flanger!

    • Bjorn says:

      Thanks! Yes, the volume drop is nasty but you can definitely hear the more authentic Gilmour tones with the Muff especially.

  64. Ben Ferwerda says:

    Hey Bjorn!

    Great post about The Mistress. I agree that overall the deluxe sounds the most pleasant. I can’t tell for sure, but it looks like the DEM you are using here has an adapter input. Is it a reissue or are you using a more current model? Nonetheless they all sound great in their own way!

    Thanks for the hard work, Bjorn!

    Ben Ferwerda

    • Bjorn says:

      Yes, mine has an adapter. It’s a 1999 reissue. The US models had the power cable but I think they sold them with the adapter in Europe to match the different voltage we have over here.

  65. Bern Merchant says:

    Hi Bjorn. I thought I’d chip in and say that the Donner Jet Convolution is great. Unless I ever get my hands on a vintage Mistress, I’m happy with this one, even though it’s a cheapie Chinese clone. It’s also good dialled in for more of a chorus sound – I’m even thinking of getting a 2nd one, and experimenting with setting one for chorus and one for flanging. I’ve also experimented with running it through a Boss LS-2 to get volume and blend control (as per the Mystery page’s mod section). The Jet Convolution is great with dirt too. I highly recommend it!

  66. Josh says:

    It’s funny that you talk about overwhelming modulation. A friend of mine who is a great guitarist saw my Floyd act once and complained afterward that during the Wall stuff I had too much modulation… Clearly he had never heard the live cuts from that era! To be fair, I was using a non-Deluxe Mistress split between two Hiwatts and an RA200, with one of the Hiwatts having a CE2 in the chain to accentuate the stereo. Wounded great to me. Huge and powerful. That first note of the C Numb solo was ridiculous.

    As for the Mistress, I had mine modded to non-Deluxe specs by Howard Davis and I fully recommend that everyone do the same. Totally changed for the better.

  67. Diego says:

    Very nice explanation of the differences. I hoped you would talk about the stereo electric mistress as well, which I own as a part of the EHX Epitome (Pedal that features the Holy Grail, Stereo Electric Mistress and POG).
    What do you think about the Stereo EM?

    • Bjorn says:

      I didn’t include the Stereo and Neo because I don’t think they are representative of the Electric Mistress tone. They’re closer to chorus, which I guess was the intention with the design as well.

    • Hi Diego, I had the same idea for the stereo electric mistress and thought well we got a choice of flanger and/or chorus and also the filter effect can be usefil so its not all bad.
      I will buy the donner just to get in the ball park….alls good though still a handy tool oh and and see what all the fuss is about. dont forget the GE7 can also help with the clean tone if your st.em seems lacking in treble…

  68. Debargho says:

    As usual, it’s a wonderful read. Thanks for the article Bjorn :)

  69. Brad Roller says:

    I love, LOVE this article. I have the “green” logo deluxe mistress from the early 80s and it sounds great. I’ve been using it with my tube driver a lot. Sounds great together. I’m very surprised to know that raise my rent is the mistress though…I always thought that was the yamaha for the solo. It’s hard to tell them apart at times. If you listen close to raise my rent and so far away, it sounds like he may have used different settings on the mistress. I personally like the sound of the yamahas in solo more. Like on final cut or dogs. Then again they sound a lot alike and both produce great tones. Again, GREAT article!

    • Bjorn says:

      Thanks! If you listen to those solo ’78 in a headset then the sounds gets easier to tell apart. I love his tones on that album but they are a bit darker and muddier than Animals and Final Cut. The Yahama sounds more chorusy while the Mistress has that slight jet swoosh… Of course, mic placement makes a huge difference for modulation tones.

      • Brad Roller says:

        I’ll have to check them out with headphones. I agree about his solo album being sort of muddier. Personally, the final cut is my favorite because like you’ve said, it’s more honest sounding. Animals is my second favorite.I like his mistress tones but the yamaha has always been my favorite. I just hope he uses his yamahas on his next album and tour!

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