Solid State Guitar Amp Forum | DIY Guitar Amplifiers

I have a Pathfinder 10 Bass and I'm thinking on getting the guitar one. I suspect the PB10 is the same circuit without the distortion channel, as it sounds great with a telecaster, but I don't really have a way to know because the schematic is impossible to find.

From what I've seen in the modded guitar version, removing C12 gives more clarity and the Bright switch in the bass version does something quite similar.

Anyone has a clue on what's going on? Maybe there's a way to make the LEDs work to add an overdrive channel?

Thanks!

Try these

Quote from: franvelasco on April 10, 2025, 03:25:05 AMI have a Pathfinder 10 Bass and I'm thinking on getting the guitar one. I suspect the PB10 is the same circuit without the distortion channel, as it sounds great with a telecaster, but I don't really have a way to know because the schematic is impossible to find.

From what I've seen in the modded guitar version, removing C12 gives more clarity and the Bright switch in the bass version does something quite similar.

Anyone has a clue on what's going on? Maybe there's a way to make the LEDs work to add an overdrive channel?

Thanks!

Looking at schematics kindly posted by Tassieviking:

1) the black on white ones look reasonable, "should" work, but I can not trust the coloured Eagle/Kicad type one.

In any case, you can use the Guitar one with Bass (and a suitable speaker) by just not pushingb the Distortion button, now for the Bass one it is not practical, just use any distortion pedal up front.

The KiCad schematic was supposedly traced out by someone from their amp, I would trust the other 2 more as well.
If you cant see the schematics in full scale then right click on the small picture and open in a new tab or window and it should come out larger.