Hi y’all,
Sorry if this is the incorrect forum to be posting this in. I am currently breadboarding a clone of the peavey f800b preamp, just the three band eq and distortion circuit for now. I got all the (I believe to be correct) components, which meant for some of the caps I had to use ones rated for a much higher voltage as I wanted to use exactly the same values used in the schematic. When it was all said and done and wired up however, I am getting very little to no signal from the output, and the gain of the output seems to go up and down just by me touching the potentiometers, even when I ground them with alligator clips. It seems like the pots are working as they should with the limited amount I can hear, but something is definitely off. I went through all the connections and triple checked everything was matching the schematic and still, an essentially broken output. Attached are the original schematics, and the adapted original schematics that I edited, as I wanted the distortion circuit to match the early version of the amp (a friend who has cracked one open showed me what the difference was), and another similar schematic to mine that I found on another forum, as well as multiple pics of what my breadboard looks like so far. I can upload a parts list from Digikey if needed as well. Thank you!
Sorry if this is the incorrect forum to be posting this in. I am currently breadboarding a clone of the peavey f800b preamp, just the three band eq and distortion circuit for now. I got all the (I believe to be correct) components, which meant for some of the caps I had to use ones rated for a much higher voltage as I wanted to use exactly the same values used in the schematic. When it was all said and done and wired up however, I am getting very little to no signal from the output, and the gain of the output seems to go up and down just by me touching the potentiometers, even when I ground them with alligator clips. It seems like the pots are working as they should with the limited amount I can hear, but something is definitely off. I went through all the connections and triple checked everything was matching the schematic and still, an essentially broken output. Attached are the original schematics, and the adapted original schematics that I edited, as I wanted the distortion circuit to match the early version of the amp (a friend who has cracked one open showed me what the difference was), and another similar schematic to mine that I found on another forum, as well as multiple pics of what my breadboard looks like so far. I can upload a parts list from Digikey if needed as well. Thank you!
, this is my first breadboard in a while, and I’m a comp sci major so this is a lil out of my element, although I am going to be taking a circuit building course next year so I’m excited for that, figured I’d do a little project like this as a refresher before I hop into that course.
