I'm wondering that is it normal, that when I turn down my guitar volume to 1 (fully muted), resistance between "hot" and "ground" is about 1.0 Ohm. I did this measurement on the other end of the instrument cable phone plug which was attached to the guitar. Could someone explain whats happening here?
You're 'muting' the sound by short circuiting the input (hot) to ground. The 1 ohm is the cable + test leads + residual pot resistance.
Shorting the guitar output
Yep, that is imminent. Can you explain how the amp is behaving while the input is shorted to ground. I've never known that the preamp stage input is shorted to ground to silence it. I guess this just means that I know very little of audio amps.
Yep, that is imminent. Can you explain how the amp is behaving while the input is shorted to ground. I've never known that the preamp stage input is shorted to ground to silence it. I guess this just means that I know very little of audio amps.
When the input of a preamp is shorted to ground means there's no voltage on the input; meaning whatever the gain is, there will be no sound....(except noise, hum etc. which is introduced in the signal path)
Everybody starts somewhere. That's basically how most (analog) volume controls work. The potentiometer works as a variable resistor divider, bringing the input of the preceding relatively stage closer to ground for lower volume.
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