Rebuilding my old analog console

[Kevint]

Awesome. Thanks for the advice. I can shift the phase on the square wave. I'll give that a try this weekend. My parts order from Mouser will arrive tomorrow. I ran out of trimpots to build the 3rd channel on the scan amp. Hoping for good results this weekend .

[Kevint]

Thanks, but I really can't take the credit for developing the board. The front end (feedback portion) is basically the LM22SDA and the back end is the open loop amp I am using based on TIP41/42 transistors. What I can do, is piece things together, draw up schematics, layout a board, make them and do a little troubleshooting.

The really good news is the I got parts today, so the weekend is looking good.

[Kevint]

Those look great!. Really nice work.