Repairing an MXR Chorus pedal - pot value?

spleenharvester

New member
I have a 2009 MXR Chorus pedal here that I bought as faulty. Advertised as no power, but on receipt it does power but the potentiometer is damaged - PCB fractured in multiple places. It's marked as "10C470K", no other markings. I've pulled the PCB off the pot and it measures a combined total 80kOhm end-to-end, but someone on another forum stated it's a 500K reverse-audio pot? Any ideas what this one might be?

There's also a schematic stating it's a 500K pot, but the schematic appears to be for the older version, not the re-issue.

Edit - looks like the part number might be ECB-510, 470K reverse audio, not sure why it's reading 80K though?
 
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Okay I think a mini 500K reverse alpha log pot should work. Will update as to whether it does (these pots are used in many MXR pedals so probably useful info to have).
 
It's just the 'rate' control, it's an MXR 148 with only one control.

(Semi)-annoyingly a Guyatone PS-002 chorus turned up on my doorstep today (thought I'd sold this thing about 15 years ago!), so I'll probably be ebaying the 148 as soon as it's fixed.
 
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