stagekraft
Active member
Hey All,
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?
Regards,
John
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?
Regards,
John
