S smilan Well-known member Joined May 29, 2017 Messages 467 Mar 6, 2024 #1 I got a Quad Eight CN28A and I'm looking for info / schematics / pinout / how to disassembly this module?
I got a Quad Eight CN28A and I'm looking for info / schematics / pinout / how to disassembly this module?
pucho812 Well-known member Joined Oct 4, 2004 Messages 14,955 Location third stone from the sun Mar 6, 2024 #2 Have you tried asking ken Hirsch at orphan audio?
S smilan Well-known member Joined May 29, 2017 Messages 467 Mar 6, 2024 #3 Yes, I've emailed them earlier but did not replayed yet. I found the pinout, but a schematic will be also nice to have. Attachments QEE-CN-28-pinout.pdf 359.4 KB · Views: 0
Yes, I've emailed them earlier but did not replayed yet. I found the pinout, but a schematic will be also nice to have.
OneRoomStudio Well-known member GDIY Supporter Joined Jul 8, 2004 Messages 673 Location Minneapolis, MN, USA Mar 6, 2024 #4 It looks pretty simple. You might be able to guess the circuit from the pictures here (even though the opamps are missing): https://reverb.com/item/20682097-quad-eight-cn-28-amp-module-1960s
It looks pretty simple. You might be able to guess the circuit from the pictures here (even though the opamps are missing): https://reverb.com/item/20682097-quad-eight-cn-28-amp-module-1960s