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NPD: 1982 Boss DM-2 Delay

RouseTheBoroughs

Silver Supporting Member
Messages
2,692
Got this locally for a trade and couldn't wait to plug it is when I got home, built July of '82, it has the MN3005 chip I was looking for versus the 3205 !



So when I first plugged this thing ... quiet ... no matter how much I pushed the knobs, the delays amounted to what could better be described as 'very minor slapback'. What a dissapointment, I had already heard one and I knew what they could do so I figured something was up.



Opened her up, did a huge clean up and took everything apart before plunking it back in and voila ! it's all there ! I am considering sending it to Analogmike or Keeley to reinforce the gizzards a bit but so far it is an absolute keeper !

 

Franktone

Gold Supporting Member
Messages
3,134
Congratulations on getting a very special delay pedal. I also got one myself not too long ago.
 

ufo~

Member
Messages
2,122
Glad to see you got it on trade. The way these have been priced lately is a bit much.
 

Charmless

Silver Supporting Member
Messages
729
I just got one of those with the same chip in a trade as well! Awesome awesome pedal.
 

qwerty

Member
Messages
250
Very nice, congratulations! One of these days...

Can I ask, when you say you cleaned it up inside, what did you do? I've got an old DD-3 currently causing me some problems, so just curious if you tweaked anything, or sprayed anything, etc?
 

RouseTheBoroughs

Silver Supporting Member
Messages
2,692
Very nice, congratulations! One of these days...

Can I ask, when you say you cleaned it up inside, what did you do? I've got an old DD-3 currently causing me some problems, so just curious if you tweaked anything, or sprayed anything, etc?
I noticed some of the solder joints were loose, wired the link with a small cable similar to the one's you see on the top of the board. Also noticed a few shorts from links touching ( getting loose with time) This is an analog circuit so it was pretty straightforward to see what was up. I might send it to Analogman or Keeley for additional tweaking for stability/reliability reinforcements.

Aside from that ... a good air blast from a pressurized air can and cleaning the pots ... et voila ... almost like new ... ALMOST, I can sometimes hear a high pitch almost imperceptible 'clock whine' in the repeats ... getting that figured out
 

sleep

Member
Messages
3,188
Congrats, those are fantastic pedals; I've been through a lot of analog delays and never heard one I liked better than a DM-2.
 

qwerty

Member
Messages
250
Cheers, thanks for the info!:dude I'll be going over my DD-3 later and I'll look out for your problem areas.

I had a Mooer delay once with a low level high frequency sound, I couldn't dial it out and it went back. Hopefully it's an easy fix for you.
 

RouseTheBoroughs

Silver Supporting Member
Messages
2,692
Happy it helped ! Not too worried about the clock whine, it's part of the Analog Delay beast, but it usually means sacrificing delay time for silence ... Sigh ...
 






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