Well, first off, this is a great place! ... I'm a newby to modding pedals but have modded tube amps for years ( just for fun of course ...) and stumbled across these circuit boards in my junk droor. I bought 'em up a long time ago from the service department of a music store I once worked in and figured I'd get around to wiring 'em up but I'm not sure what they are :)
One is an MXR and the board says "Studio Sounds" on one side and OD1a on the other shown here: IC's are 2 LM741 and 1 4013a
http://users.eastlink.ca/~melanhead/PIX/MXR1.jpg
http://users.eastlink.ca/~melanhead/PIX/MXR2.jpg
The other is a big mystery... All that is stamped on it is 999 or 666 depending how you look at it :) ... shown here: IC's are 3 SM72558p
http://users.eastlink.ca/~melanhead/PIX/UK1.jpg
http://users.eastlink.ca/~melanhead/PIX/UK2.jpg
As well as these boards I found 2 early 80's Boss OD1's, 2 Dynacomps, 3 Phase 90's and 3 Distortion Pluses ... I think they're all early 80's...
The OD1's both work and I'm using 'em ( slightly modded ) and 1 Dynacomp... I haven't spent any time on the others yet but should be fun ... just wish I had the boxes! ...
Any help would be appreciated as I've scoured the internet and can't find any info...
Thanks ...
First PCB ist from an MXR_Bluebox
Second PCB is a 4-stage FET-Phaser, maybe a MXR Phase 90 or something similar from Ross etc.
analogguru
Great! ...thanks ...now I just need schematics :) ...
the phaser is a definitely a Maxon "Phase Tone"
that blue thing, with the script writing.
the schematic is around online.
Very cool then! ... thanks :) ...
I'll dump this PDF here for a few days.
it was sent to me by another user on this group. it is not 100% the same, as the board you have has a hardware bypass, not a flippy-floppy one like on this schematic, but, it's near enough.
http://users.tpg.com.au/reveng/mpt.pdf
Thanx muchly!
I hate you!!! You lucky butt! That's an AMAZING find. Even if you just boxed everything up, that's like $700-800 worth of effects. Use them wisely man...some of that stuff is like treasure to some people.
Cheers,
Nish
Quote from: sir_modulusI hate you!!! You lucky butt! That's an AMAZING find. Even if you just boxed everything up, that's like $700-800 worth of effects. Use them wisely man...some of that stuff is like treasure to some people.
Cheers,
Nish
Yup! ... I should be able to get most of it running again, but I'll have to buy a bunch of boxes :) ... Luckily I do have a bag of 80's MXR pots.
I'm just getting back into pedals again after selling most of 'em on ebay a few years ago ....
had kids and gave up some hobbies ... for a bit :D
Well thanks to cd's pix of the Phase 90 boards
http://diystompboxes.com/sboxforum/viewtopic.php?t=26093&postdays=0&postorder=asc&highlight=zakk+wylde&start=15
I just realized that the 3 I have are Script! ... Hope I can get at least one working :)
I love this place! ....
Oh wow...way to rub it in!!!! =P
That's an amazing find man...amazing! Good luck on reboxing them!
Cheers,
Nish
Thanks man .... Sorry to rub it in :D .... They've been sitting in the drawer for about 7 years ... I keep looking at 'em but finally have some time to play make 'em work :) ...
I'm a bit excited ...