Sharkfinger Posted November 26, 2015 Share Posted November 26, 2015 (edited) Got a yamaha bass in need of some TLC. This pot is broken (stuck in the 'up' position). Need to ID it so I can buy a replacement and make a hash out of replacing it. More here: [url="http://s1074.photobucket.com/user/sharkfinger/library/Pot"]http://s1074.photobu...ger/library/Pot[/url] Edited November 26, 2015 by Sharkfinger Quote Link to comment Share on other sites More sharing options...
verb Posted November 26, 2015 Share Posted November 26, 2015 What is the writing? That will identify the value of the pot and it's taper. I would assume it is a DPDT switch. Quote Link to comment Share on other sites More sharing options...
Matt P Posted November 26, 2015 Share Posted November 26, 2015 it certainly looks like a dpdt switch, the pot itself has a kilo ohm rating stamped on the side but I can't make it out, if you can read the letters on the side and tell us what they are then we should be able to point you to a suitable replacement, Matt Quote Link to comment Share on other sites More sharing options...
Sharkfinger Posted November 27, 2015 Author Share Posted November 27, 2015 Even with the naked eye, I can't make it out. I've decided to just hand it over to the tech I use. Chris Ward can fix this in his sleep. Quote Link to comment Share on other sites More sharing options...
brensabre79 Posted November 27, 2015 Share Posted November 27, 2015 Looks like a 300Kohm DPDT pot, made by ALPS. I downloaded the clearest image from the link and adjusted the levels in Photoshop. It's clearly a 3 before the 00K, preceding that is an 'A' - so probably Audio Taper (Log) I've seen these have been used on Yamaha Pacifica guitars too so it makes sense. You could probably replace with a CTS 250k DPDT with little difference. OR place a 750k resistor between the two outside lugs of a 500k pot - which will make it a 300k, but not sure how that will affect the taper. if you want exactly the same, you could try contacting Yamaha direct. Quote Link to comment Share on other sites More sharing options...
Sharkfinger Posted November 27, 2015 Author Share Posted November 27, 2015 [quote name='brensabre79' timestamp='1448630953' post='2916975'] Looks like a 300Kohm DPDT pot, made by ALPS. I downloaded the clearest image from the link and adjusted the levels in Photoshop. It's clearly a 3 before the 00K, preceding that is an 'A' - so probably Audio Taper (Log) I've seen these have been used on Yamaha Pacifica guitars too so it makes sense. You could probably replace with a CTS 250k DPDT with little difference. OR place a 750k resistor between the two outside lugs of a 500k pot - which will make it a 300k, but not sure how that will affect the taper. if you want exactly the same, you could try contacting Yamaha direct. [/quote] Wow, that's dedication! Thanks brensabre79! I think I've actually got a CTS 250k DPDT (or something very similar). I doubt whether I or anyone else will ever hear the difference. That will save me (and my tech) scouring around trying to find a replacement. Quote Link to comment Share on other sites More sharing options...
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