[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.
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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.