[Replacing potentiometer inside Brent pedal]

Thanks Bill. Research on this forum and an electronics thread suggests a 250k ohm trim potentiometer.  Existing broken one is easy to remove and there is plenty of space to use an alternative trim pot. And I might be in luck -- I have a broken Marantz sd3000 cassette deck and it includes 250k ohm audio tapers. Trying one this afternoon. 

[Old Brent b resistor]

On 4/13/2022 at 4:02 PM, Macke said:

https://www.digikey.com/en/products/detail/cts-electrocomponents/201UR105B/98359 This link goes to the blue one (low side) and the part number leads to a 1M ohm 0.2W trimmer

 

The high side is the "250k" one. I tried adjusting the dial on them during measurement and there was no resistance across any of the posts in any position, it's like they're completely shot. The plastic tray definitely smelled like hot/burnt electronics as well. If I had to guess, when the cap went bad it probably took this out with it?

 

 

This part is obsolete -- which did you choose instead? Hoping to find something that fits in the same space :-)

[Old Brent b resistor]

Hiya! Any update on your write up?

Robert

[Replacing potentiometer inside Brent pedal]

What if one were to get carried away and accidentally over-adjust the high trim pot on my brent c pedal? I did that today and heard a snapping sound, loosening a thin circular piece of black plastic from within the trim component. Any idea what to replace it with? Fixed resistor -- if so, what ohm for max power?   New trim component -- if so, can I harvest one from an old marantz stereo?