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replacement pots?
Posted: Tue Apr 01, 2025 1:04 am
by tristanshoutsf
I have an MF-103 made in 2018 with 2 damaged pots: output level and LFO rate. Both are Alpha Taiwan. The Output level is an A50K and the LFO Rate is a B10K. The A50K appears to be RV24AF-40-15R1-A50K, but identifying the B10K is proving harder. It appears to have a 6.35mm x 17mm D shaft. The nearest Alpha Taiwan matches I've been able to find are 6mm x 15mm or 6mm x 20mm. Any guesses as to a suitable replacement for this one? I have also submitted a moog music support ticket with this question.
Re: replacement pots?
Posted: Mon Apr 14, 2025 12:03 pm
by tristanshoutsf
According to Moog tech support, the B10K is an RV24AF-40-165F1-B10K-00K2. Taiwan Alpha does not currently make anything with an F1 shaft (6.35mm) and nothing at all with 16.5mm shaft length. Perhaps this is a discontinued line. Thankfully Moog tech support was able to salvage a replacement pot from a dead 103.
My alternative plan was to try to salvage the F1 shaft from the broken pot and swap it into a replacement R1 B10K pot, assuming that that's even possible. I'll save the parts just in case though.