kbyrne Posted November 25, 2014 Report Share Posted November 25, 2014 I have a NEC amplifier that I am working on and need to find a source of Data Sheet for ALPS potentiometers to identify the value and old part numbers. This is all there is on the pot. 305F & 250KMN. The readingI get is 195k but that is due to fact that the shaft is busted an cannot be turned. I assume value is250K. Where do I go for a Technical Data sheet for ALPS? Quote Link to comment Share on other sites More sharing options...
Guest liquibyte Posted November 25, 2014 Report Share Posted November 25, 2014 I have a NEC amplifier that I am working on and need to find a source of Data Sheet for ALPS potentiometers to identify the value and old part numbers. This is all there is on the pot. 305F & 250KMN. The readingI get is 195k but that is due to fact that the shaft is busted an cannot be turned. I assume value is250K. Where do I go for a Technical Data sheet for ALPS?I just did a search for "alps 250kmn" on Google and many of these pop up. Is this a dual pot? The 305F is probably the model number and I'm fairly sure the 250KMN represents the value with some sort of series being the MN part. Pics of the part in question might help but you can usually get by with the same value and physical dimensions from another manufacturer. Audioguru might be able to help more with this, I think that's the kind of thing he's into. Anyway, these things are all over ebay. Quote Link to comment Share on other sites More sharing options...
audioguru Posted November 26, 2014 Report Share Posted November 26, 2014 I have never seen a bad ALPS pot and have never ordered one.If the code had an "A" in it then it would have an Audio logarithmic taper. It has an "M" so it is a linear pot. Quote Link to comment Share on other sites More sharing options...
kbyrne Posted November 27, 2014 Author Report Share Posted November 27, 2014 Thank you. No A, M in letters. Dual pot that I have found on E-Bay with 12mm shafts and 6mm shafts.Mine is 6mm shaft size. Must be linear, will order one. Many thanks. Kevin ;D Quote Link to comment Share on other sites More sharing options...
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