Change trim pot to external pot question

[bzdunowski]

if I want to not put a 50k internal trim pot for the clean and instead use an external pot can someone tell me how I go from the three holes in the PCB to an external pot? Also for the external pot should it be a A50K or B50k?

FYI this is the Sunflower Fuzz

 

[Harry Klippton]

Yeah just run wires from those pads to the pot

 

[bzdunowski]

Yeah just run wires from those pads to the pot

Is it literally middle to middle right to right left to left. Nothing weird? Also would you do a A50K or a B50K?

 

[Harry Klippton]

Just look up potentiometer lug numbers and wire them according to the schematic. As for the pot taper, I'll let somebody else chime in on that since I'm not sure. Maybe @Big Monk since he loves pre gain controls on fuzz faces

Potentiometer Lug Numbers

For those who think it's easier to annoy you than to Google 'Potentiometer lug numbers' themselves.

letmegooglethat.com

 

[Big Monk]

Is it literally middle to middle right to right left to left. Nothing weird? Also would you do a A50K or a B50K?

Linear. 50kB.

 

[Big Monk]

Maybe @Big Monk since he loves pre gain controls on fuzz faces

Works great on the MK II as well.

 

[Harry Klippton]

You got this @bzdunowski

 

[finebyfine]

Linear. 50kB.

I trust your call on this but I would have assumed log taper because it's similar to turning down a guitars volume knob - why's linear your go to?

 

[Big Monk]

I trust your call on this but I would have assumed log taper because it's similar to turning down a guitars volume knob - why's linear your go to?

Well it’s replacing the trim pot which is linear. I use an Audio taper for the higher values > 100k like you see in the Gagan Easy Face.

50kB has been working great for me recently.