But I'm away from my amp, so I can't test it myself, so I'm asking here. If I turn the OD entrance pot all the way down, to 100K resistance between input and wiper, will that just lower the level of the overdrive channel, or will it decrease the amount of overdrive the OD circuit will produce?
I probably need to work with the knobs a bit more, but my first impression of my amp was that the OD channel is pretty overdriven, even when both drive and level are turn way down low. I'd like to be able to get a "slightly overdriven" tone from the overdrive channel...
Tommy
probably a stupid question about the OD entrance pot...
Moderators: pompeiisneaks, Colossal
Re: probably a stupid question about the OD entrance pot...
The OD entrance pot should go all the way to 0 sound. It's grounded so at 0 all the signal should be sent to ground.
Typically you'd set the OD entrance pot to about 135K total resistance from the top of the pot to the grid of V2a.
Let's see if I can explain this. V2a will overdrive the top half of the wave form. V2b will again distort the top half of the wave, but since V2a has inverted the wave, V2b will take care of the other half.
So the goal of the OD entrance pot is to overdrive the top half of the wave slightly. The drive pot will handle the rest.
I hope that makes since. I makes since in my little pea sized brain
Typically you'd set the OD entrance pot to about 135K total resistance from the top of the pot to the grid of V2a.
Let's see if I can explain this. V2a will overdrive the top half of the wave form. V2b will again distort the top half of the wave, but since V2a has inverted the wave, V2b will take care of the other half.
So the goal of the OD entrance pot is to overdrive the top half of the wave slightly. The drive pot will handle the rest.
I hope that makes since. I makes since in my little pea sized brain