dave74200 Posted January 1, 2022 Share Posted January 1, 2022 Hi all, I had to have the pots changed on my P bass but the original knobs won't fit, so the tech put some new ones on. They're slightly different, smaller and more rounded and I don't like them! Is there anywhere I can get original looking ones that will fit? How will I know they'll fit until I try them? May sound really petty but just feel these new ones spoil the look. Thanks in advance, Dave. Quote Link to comment Share on other sites More sharing options...
Velarian Posted January 1, 2022 Share Posted January 1, 2022 I went through this with some Jazz Bass knobs and got it wrong, twice! The first thing to establish is what are the pots you’ve had fitted. More specifically, the diameter of the shaft and are they solid or split shaft. If split shaft, how many splines? If you count the splines on each side you should add 1 per side to account for the spline which would have been where the gap is. Once you know the spec, it should be easier to find the right knobs. 1 1 Quote Link to comment Share on other sites More sharing options...
Reggaebass Posted January 1, 2022 Share Posted January 1, 2022 Maybe post a pic of the pot shaft 👍 1 Quote Link to comment Share on other sites More sharing options...
KiOgon Posted January 1, 2022 Share Posted January 1, 2022 19 minutes ago, dave74200 said: Hi all, I had to have the pots changed on my P bass but the original knobs won't fit, so the tech put some new ones on. They're slightly different, smaller and more rounded and I don't like them! Is there anywhere I can get original looking ones that will fit? How will I know they'll fit until I try them? May sound really petty but just feel these new ones spoil the look. Thanks in advance, Dave. The 'tech' is a knob then 😃 Quote Link to comment Share on other sites More sharing options...
dave74200 Posted January 1, 2022 Author Share Posted January 1, 2022 1 Quote Link to comment Share on other sites More sharing options...
Thunderbird Posted January 1, 2022 Share Posted January 1, 2022 Think you need a standard 6mm push on knob for the splined pot Quote Link to comment Share on other sites More sharing options...
pst62 Posted January 1, 2022 Share Posted January 1, 2022 These are most likely what you need. Quote Link to comment Share on other sites More sharing options...
dave74200 Posted January 1, 2022 Author Share Posted January 1, 2022 2 minutes ago, Thunderbird said: Think you need a standard 6mm push on knob for the splined pot The ones on the bass are the new ones and the separate ones are the old. Sorry, I should've been more clear!! Thanks all. Very much appreciated. Quote Link to comment Share on other sites More sharing options...
pst62 Posted January 1, 2022 Share Posted January 1, 2022 (edited) 7 minutes ago, dave74200 said: The ones on the bass are the new ones and the separate ones are the old. Sorry, I should've been more clear!! Thanks all. Very much appreciated. Right then, those above will still be most likely be what you need. Edited January 1, 2022 by pst62 1 Quote Link to comment Share on other sites More sharing options...
PaulThePlug Posted January 1, 2022 Share Posted January 1, 2022 (edited) A shout for Vanson via the bay... https://www.ebay.co.uk/str/vansonguitars Push-On for splined shaft they do a Large 19mm x 19mm or Std 18m x 18mm I've got the Dome's on a P in chrome and a J in Black. Met not pladtic, Real nice weight and quality feel and finish.. Edited January 1, 2022 by PaulThePlug Quote Link to comment Share on other sites More sharing options...
dave74200 Posted January 1, 2022 Author Share Posted January 1, 2022 30 minutes ago, pst62 said: Right then, those above will still be most likely be what you need. Cool, thanks. Would it be any specific size do you know? Quote Link to comment Share on other sites More sharing options...
pst62 Posted January 1, 2022 Share Posted January 1, 2022 25 minutes ago, dave74200 said: Cool, thanks. Would it be any specific size do you know? Not sure, I purchased these from here https://www.northwestguitars.co.uk/push-fit-metal-control-knob-nb001/, and they pushed straight on with no problems. 1 Quote Link to comment Share on other sites More sharing options...
Hellzero Posted January 1, 2022 Share Posted January 1, 2022 Use a caliper and simply measure the shaft as @Velarian suggested, it will be either metric (6 mm) or imperial (6.3 mm or 1/4 inch), then buy the ones corresponding. If you prefer push-on knobs, then buy these. That said if the original ones are already screw-on type, you can simply redrill them to 6.3 mm... 1 Quote Link to comment Share on other sites More sharing options...
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