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August 5, 2011 at 7:01 pm in reply to: Deluxe Memory Man vintage chassis low/no sound question #105474Howard DavisMember
Test your DMM outside of your pedalboard with only a good 24VDC adaptor, guitar, and amp hooked up to it. If it works properly that way, the problem lies elsewhere. If the DMM is at fault, as the engineer that designed it I certainly can fix it. Email me privately at howard.davis2@att.net.
Guitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.comHoward DavisMemberQuote:Have a mid to late 90’s DMM but it’s seen some wear. Does EHX or someone else do body work for it?I can cosmetically recondition the box to look almost new, although it is impossible to remove rust stains.
I can also do many custom mods – please email me privately at howard.davis2@att.net for more information.Guitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.comHoward DavisMemberI designed it, so I certainly can fix, and if you want, custom-mod it.
Howard Davis, EE
Guitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.com
Direct email: howard.davis2@att.netHoward DavisMemberI designed the DMM, so I cartainly can fix one!
Email me privately for more information and a list of available mods.Guitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.comMarch 26, 2011 at 4:58 pm in reply to: does the deluxe memory man have similar/the same oscillation as an old (non-deluxe) memory man? #114792Howard DavisMemberALL of the MM/DMM models should be able to oscillate with the feedback turned up high enough. If it cannot, something is wrong – possibly the trimpot alignment. I can fix it.
Guitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.comHoward DavisMemberI designed it, so I certainly can fix it!
Email me at howard.davis2@att.netGuitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.comHoward DavisMemberQuote:I tried reseting my trim pots but i dont think i did it correctly. what is midpoint? is it setting them to where the red lines are pointing to the top of the pedal?[/quote]
Lab equipment and the correct alignment procedure are necessary to properly set the trimpots. It cannot be done without these. As you’ve tampered with them, you’ll now have to have it done by someone with the right equipment and knowhow. I can do it.
Howard Davis, EE – designer of the Memory Man
Guitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.comHoward DavisMemberQuote:so i have a DMM that has the blue and red print with 4 knobs. it recently got a problem. the pedal turns on but i dont get delay. someone told me that i might need a new chip, what do you guys think?A bad delay chip is one of several possible causes of this problem.
I can fix it.Guitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.comHoward DavisMemberIncreasing the input impedance alone can reduce tone sucking, but not the overdrive distortion problem. My Input Impedance Increase plus Hot Pickup mods will bring up the headroom, which is what is needed most.
If interested in mods for your DMM, email me privately at howard.davis2@att.net
Howard Davis – designer of the DMM.
Guitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.comHoward DavisMemberDELAY TIME INCREASE MOD
The Deluxe Memory Man was designed for a 550 msec. maximum delay. Some units, due to component tolerances and manufacturing problems, do not have this long a delay time. A mod can be done that corrects this condition. You can get at least 650 msec of maximum delay time before distortion is significantly increased at the longest delay settings.If interested in my mods for the DMM, email me directly at howard.davis2@att.net
Guitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.comSeptember 18, 2010 at 5:22 pm in reply to: Whats the deal with puting tubes in a guitar pedal? #111480Howard DavisMemberBy all means use what you like, but there are very good reasons for my general preference for solid state circuitry, especially for guitar pedals. This is discussed in depth on my website: http://www.howardmickdavis.com/Tubesvs.SolidState.htm
Guitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.comJune 8, 2010 at 5:43 pm in reply to: my DMM has deteriorated over the years, how can i get it restored? #102257Howard DavisMemberQuote:my DMM, soundwise has gotten dirtier than it was years ago. the controls dont respond quite the same, and it just seems less than reliable overall.
where can i send it to have it restored? its about 11 years old and i am the original owner.It may not need anything more than an alignment. I designed it, so I certainly can fix it.
Guitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.comEmail me privately at howard.davis2@att.net
Howard DavisMemberGo by what you hear, not what the LED does. No harm in overdriving the pedal if you don’t mind the distortion.
I do a Hot Pickup mod that increases the headroom to reduce distortion when the level is high, as with hot pickups.
If interested in this and other mods for the DMM, email me at howard.davis2@att.netHoward Davis, EE – designer of the Memory Man.
Guitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.comHoward DavisMemberIt requires an oscilloscope, audio oscillator, the test/alignment procedure, and experience as a technician to properly set the trimpots. Without these, it should not be attempted as you’ll probably just make things worse. I designed the Deluxe Memory Man, and I certainly can restore yours to sound and operate like new.
Please email me privately at howard.davis2@att.net.
Guitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.comHoward DavisMemberIt requires an oscilloscope, audio oscillator, the test/alignment procedure, and experience as a technician to properly set the trimpots. Without these, it should not be attempted as you’ll probably just make things worse. I designed the viontage Stereo Memory Man, and I certainly can restore yours to sound and operate like new.
Please email me privately at howard.davis2@att.net.
Guitar pedal design engineering, repairs, and custom mods:
http://howardmickdavis.com -
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