Thumbsucker "stock" markings

[micmac]

Hi all!

Beginner here. I have a Thumbsucker kit to build and to make my life easier I want to mark the stock settings of the Engineer's Thumb on the Threshold, Release and Attack pots on the decal (with a red dot or line in the 1 to 10 scales surrounding these three knobs).

With "stock settings" I mean the resistance values that you would have if you followed the schematic from Merlin for a 2 knob version (the 2 knobs being Level and Ratio).

Thumbsucker docs: PedalPCB Thumbsucker PDF
Merlins Engineer's Thumb docs: Valvewizard PDF

I thought about it and came up with this:

Threshold pot: 1M between lugs 1 and 2
Release pot: 370k between lugs 1 and 2 (because in PedalPCB layout there's a 100k in series in front of the pot)
Attack pot: 0Ohm between lugs 1 and 2 (fully counter clockwise)

I think this is correct, but I have been wrong before

Can anybody please confirm?

Thanks!
Seb

 

[jimilee]

I’ll be honest with you, it depends on your input signal and the effect you’re looking for. There is no right or wrong answer. Set it to taste.

 

[micmac]

Hi jimilee, it's not about taste, I'd just like markings on the three extra pots of the Thumbsucker that get me to the values of Merlin's Engineer's Thumb 2 knob pedal.

 

[swyse]

The tolerance of most pots being +/- 20% makes this a difficult guess to make. How are you doing your graphic? I'm thinking If you can put a knob on your actual pot, set it to the desired resistance and then recreate that position on your graphic might be the most accurate way.

 

[micmac]

Yes, exactly, that's the plan. I'd just like to know if I got this correct:

Threshold pot: 1M between lugs 1 and 2
Release pot: 370k between lugs 1 and 2 (because in PedalPCB layout there's a 100k in series in front of the pot)
Attack pot: 0Ohm between lugs 1 and 2 (fully counter clockwise)

 

[Coda]