Wynand said:Ok. So I've got my guitar at work... can I just put the guitar on a scope (to see output) or must it be connecter to a amp?
Yes, just connect the guitar direct to the scope, the 1Meg input impedance of the scope is perfect for a passive guitar!.
Thanks. Tried it.
Built a non-inverting stage with a LM358 with gain 10x.
Plugged this into my LM4780 stereo amplifier.........
Voila.... sound, not brilliant, not good, but there!!!
There is a soft fuzz effect behind the sound of the guitar, but i suspect that it is the prototyping board I'm using!?
Built a non-inverting stage with a LM358 with gain 10x.
Plugged this into my LM4780 stereo amplifier.........
Voila.... sound, not brilliant, not good, but there!!!
There is a soft fuzz effect behind the sound of the guitar, but i suspect that it is the prototyping board I'm using!?
Wynand said:Thanks. Tried it.
Built a non-inverting stage with a LM358 with gain 10x.
Plugged this into my LM4780 stereo amplifier.........
Voila.... sound, not brilliant, not good, but there!!!
There is a soft fuzz effect behind the sound of the guitar, but i suspect that it is the prototyping board I'm using!?
What input impedance is the preamp?.
1Meg
It's a VERY basic circuit. Input to GND = 1M
Gain is with a 10K and a 1K resistor. Nothing else
P.S. Just grabbed a LM358. I figured, its a guitar amp, not a Hi-fi.
I wasn't looking for performance, yet. I want to play around with the circuit first so if I blow something its not a biggie!
It's a VERY basic circuit. Input to GND = 1M
Gain is with a 10K and a 1K resistor. Nothing else
P.S. Just grabbed a LM358. I figured, its a guitar amp, not a Hi-fi.
I wasn't looking for performance, yet. I want to play around with the circuit first so if I blow something its not a biggie!
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