ok folks, a little update. i got another one in, and revisited those 4 resistors that were bugging us. they are definitely the values that crackerman posted. 6K81, 6K81, 150K and 100R. yes, R37 is 100R. brown, black, black , black. and measures 100R as well. cheers, lohstah Who doubted me!!! Just k...

Found this online. The bass version is mostly correct. Q3 should be a MPSA18. Maybe a thing, or two else is wrong.

http://lectric-fx.com/product/zirconia- ... sor-v-1-1/

jsaily wrote:The potentiometer values are not shown in the schematic, I assume they are identical to the guitar version?

Exactly. Yes they are

I built one modifying harald's vero. Everything is as on the schematic except I didn't change the red led section from the guitar version. Back to back I can't hear a difference to the stock one I have. I also can't see a diffence between the leds. I wish I had an answer for R37.

I did find a few things when I traced through this. -There is a 1M resistor to Ground between C15 and R25 -C26 and R31 need swapped. The coupling caps tie together and the opamp is an in an Inverting configuration. -On pin 2 of IC1A(LM358) there is a 100K resistor which goes to a .1u cap to Ground. ...

Top left: 100
Bottom left: 6.81K
Top right: 6.81K
Bottom right: 150K

I would love to fix my attempt at copying this. One of the side chain outputs oscillates and I can't figure out why.

472J 4.7nF

Anybody still care?