I'll do the "Walleyevision" (tm) schematic this evening. Pop me a email address in a PM for the PDF.
Steve
I'll do the "Walleyevision" (tm) schematic this evening. Pop me a email address in a PM for the PDF.
Steve
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...
Norty:
This is what you are looking for...
Click on the image for a larger version.
As others have mentioned - use the TL-082/084 family. They are J-fet op-amps and are just about bullet-proof. (The QM-2000 uses them on the output stage, if that means anything to you!)
Adam
PS: This has been in my gallery for several years now.
Yeh I could never get the LM3900 to work right for any project .. I too would avoid it / and the headaches involved ..
Norty, Drawing sent, with the voltage regulators, zener output clamps, supply filter caps, and resistors drawn in.
Steve
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...