Yes, I found that one also, but the post from the guy who said he has schematics is 11 years old.
I've been trying to join diystompboxes for the last week, hoping to find this guy or more info, but have not yet got a confirmation email from them.
I have been scouring the internet for a schematic of a 70's vintage Systech 7012 Flanger, I have come across
some pictures, and units for sale on ebay or reverb, but no schematic...
So I have recently started joining a myriad of different forums hoping to find someone who might have it
(closest I've come is a post on a stompbox forum site, a 7-yr old post of someone saying he had the schematic,
but I can't seem to get the activation email from the site to complete my registration to follow up)...
It's a rackmount unit using a MN3004 BBD, it has a couple CMOS chips that I think are clocking the BBD.
and a half dozen dual op-amps, a handful of bi-polars, a couple FETs, and a High Current OTA.
I can trace the audio signal through the first couple op-amps, then I lose it (lost in the city without a map),
and there is no audio signal at the input of the BBD.
There is some slow clocking from the CMOS stuff to the BBD, but I don't know if slow is normal?
Anyone here have a schematic or any other info on this unit?
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