07-11-2011, 10:05 PM
Joe,
I wish I'd been standing behind you with a paper bag when you switched on
I'm using the Pye sheet so I don't know which is C21 on the Trader sheet. However, your results look OK assuming that you're injecting Audio. Try injecting modulated 470 kHz into V2 G1 - Pin2. That should produce Audio output which you can vary with the Volume Control. You can trace it with the scope.
I don't like your LED circuit, but that's another story.
Alan
I wish I'd been standing behind you with a paper bag when you switched on

I'm using the Pye sheet so I don't know which is C21 on the Trader sheet. However, your results look OK assuming that you're injecting Audio. Try injecting modulated 470 kHz into V2 G1 - Pin2. That should produce Audio output which you can vary with the Volume Control. You can trace it with the scope.
I don't like your LED circuit, but that's another story.
Alan






