Einstein Mode Switching Schematic and Proposed Volume Fix

[slyvren]

I noticed there are alot of people here that wish the Einstein was almost a 4 channel amp with the modes. I love the different sounds, and I too wish that I could just footswitch them with a volume control for each channel. EQ isn't as important as they all sound incredible EQ'd similar. I looked inside the amp and discovered there are punch-outs for 2 more pots (I assume for Reverb for the combo version). I came up with the idea of when switching modes to also just switch different volume pots into the circuit. I was talking to my good friend who's an electrical engineer about the issue. He just sent me a Preliminary Design schematic. DO NOT ATTEMPT to wire this up. We haven't tested it. We're going to test-bed it outside of the amp. I just wanted to see if anyone had any ideas or input on the circuit. Especially the amp builders that lurk here. He was also nice enough to draw up the Mode Switching schematic a bit more neatly than whats currently online.

I plan to do a fully documented build of this at some point.

ANY FEEDBACK WOULD BE APPRECIATED. Thank you.


MODE SWITCHING FOOT PEDAL SCHEMATIC -

Volume knob switching Preliminary Design Schematic
note: the (+) on the relays goes to the Amp's (+) post for the channel 1 volume knob.. likewise for the (-)

 

[rockerjt]

Keep us posted; maybe you're onto something. I always thought footswitching the modes would be cool (even though it was not designed to be used that way), but the available options thusfar have not been suitable. Hopefully you guys have figured this out and maybe at some point local techs can do the mod for the owners out there (who won't even attempt work on their amps, like me).