Radium Springs: Tweak values/trimpot For Tremolo Level?

[Bucksears]

I read the review of the Radium Springs where a user tweaked some resistor values to adjust the tremolo level, when using those modes:
"replace the resistors controlling the tremolo signal with trimpots using the handy Trimmit boards or socketing them and changing them out until you like them."

Anybody know which resistors those are?
Thx!

 

[Bucksears]

Changed my mind about the direction for this board and ordered the EEPROM for the ThreeVerb, but still curious about the above changes.

 

[Cybercow]

Changed my mind about the direction for this board and ordered the EEPROM for the ThreeVerb, but still curious about the above changes.

All the parameters for the tremolo section are in the EEPROM that contains the FV-1 algorithms. And as such, there are no external component values that can be changed to affect the tremolo or other settings. It's all in the code found in the EEPROM. That's why there has never been an answer for tweaking the resistors of a Radium Springs to alter the tremolo signal.

 

[Matopotato]

I read that review as well and it is not super obvious what was done. After looking at the schematics, and if I was to build this, I would replace each of R7 and R16 10k resistors with either a 20k trimpot, and use middle leg an one of the outer, and cut the other outer. Probably best with legs that make up 0-20k rather than 20k-0k going clockwise. Might have added a 1k in series with the trimmer to avoid any zero k situation by mistake during tweaking.
Or as the reviewer wrote, use the trimmer until you have what you like and put in a fixed closest value instead. Might not be likely to return to tweaking. But if that is the case, consider 20k Lin (B) pots and drill 2 more holes instead, but it sounds more like a "tweak until you like" rather than "let's tweak again" scenario.

 

[Robert]

R7 and R16 are pull-down resistors for the mode switch. Their values are irrelevant as long as they are high enough to not load the 3.3V supply and low enough that the pins still return to near 0V when open. Changing them wouldn't affect the sound.

Like @Cybercow said, this is a mostly digital circuit. There's not much you can do to modify the tremolo or reverb aside from maybe some filtering or throw off the mix. (Which would be pointless since there's a Wet/Dry mix control)