You will have to change the 2m2 feedback resistor to a more suitable value for the signal level if you are using a magnetic pickup, otherwise using a piezo bridge pickup it will be fine as it is.
Only this change, using on a normal bass pickup? Pickup goes to pin 6 ic? Thank's friend.
Yes, pin6. I should think a series resistor of say 22k and the 2m2 down to 68k would give a gain of about 3. Probably about right for a guitar preamp to handle. If not enough signal, increase the 68k to say 120k. gain of 6.
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I'm sorry but my knowledge of it is limited. Think it gives me to show these changes in schematic? I appreciate all your attention, God bless you
Sorry, but that's far too low an impedance for a passive pickup - I would suggest leaving the 2m2 and adding a 1m feeding the input, plus it MUST have a DC blocking capacitor from the PU, or it will upset the bias for the opamp.
thank you very much Nigel! My knowledge of it is little. You can do this for me in this schematic, please?! I thank you very much!
It's dead simple, between the top of the pu and pin 6 of the opamp cut the connection, connect a 0.1uF capacitor to the top of the pu, connect the other end of the 0.1uF to a 1m resistor, and connect the other end of the 1m resistor to pin 6.
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