Hi...
I am building a Guitar Buffer for my pedal board and am basically using this schematic...
http://www.freeinfosociety.com/electronics/schematics/pictures/craigandertonbuffer.gif
with some modifications published in Projects for Guitarists by Craig Anderton. Basically the modifications use dual batteries and have a more filtered output.
What do you recommend I use for the Op Amp? He claims you can use any 741. I was thinking of using a TL071 or TL072 or something like that since they are cheap and generally lower noise.
Any suggestions?
Or Any suggestions on general design?
I am building a Guitar Buffer for my pedal board and am basically using this schematic...
http://www.freeinfosociety.com/electronics/schematics/pictures/craigandertonbuffer.gif
with some modifications published in Projects for Guitarists by Craig Anderton. Basically the modifications use dual batteries and have a more filtered output.
What do you recommend I use for the Op Amp? He claims you can use any 741. I was thinking of using a TL071 or TL072 or something like that since they are cheap and generally lower noise.
Any suggestions?
Or Any suggestions on general design?
Yes, you should be fine. I believe the TL07x's work well in unity gain applications.
Personally, I wouldn't build it this way. Using 2 batteries is wasteful, since the guitar output is low enough that +/- 4.5 VDC power will do the job, which is how most commercial pedals are designed. I would look for an op amp that is happy at +/- 5VDC power and use 1 battery with a voltage divider circuit.
Personally, I wouldn't build it this way. Using 2 batteries is wasteful, since the guitar output is low enough that +/- 4.5 VDC power will do the job, which is how most commercial pedals are designed. I would look for an op amp that is happy at +/- 5VDC power and use 1 battery with a voltage divider circuit.
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