Op-amp as buffer question

[mixedgas]

I'll do the "Walleyevision" (tm) schematic this evening. Pop me a email address in a PM for the PDF.

Steve

[buffo]

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.

[steve-o]

Yeh I could never get the LM3900 to work right for any project .. I too would avoid it / and the headaches involved ..

[mixedgas]

Norty, Drawing sent, with the voltage regulators, zener output clamps, supply filter caps, and resistors drawn in.

Steve