[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. 

[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?