NancyJohnson Posted August 6 Share Posted August 6 Just bought some concentric pots (with solid shafts) for a project, I would have liked to have used some existing knobs but they're a little too big. The concentric pots have 3/16th" and 1/4" diameter shafts. I ordered some Allparts brass sleeves SKU# EP-0220-008 which will appear to fit, but beyond this, what's my option? Quote Link to comment Share on other sites More sharing options...
JohnH89 Posted August 6 Share Posted August 6 Just fixed an old Peavey PA up for a local bloke . They have 3/16 pot shafts and knobs are almost unobtainable . Used 1/4 knobs but applied a couple of small lengths of heatshrink to the 3/16 shaft . 2 1 Quote Link to comment Share on other sites More sharing options...
NancyJohnson Posted August 6 Author Share Posted August 6 1 hour ago, JohnH89 said: Just fixed an old Peavey PA up for a local bloke . They have 3/16 pot shafts and knobs are almost unobtainable . Used 1/4 knobs but applied a couple of small lengths of heatshrink to the 3/16 shaft . Absolutely great call on the heatshrink. I just had a quick test...requires a couple of short lengths to cover the individual shafts and applied one after another. Works a treat. Brilliant! Cheers! 1 Quote Link to comment Share on other sites More sharing options...
JohnH89 Posted August 7 Share Posted August 7 7 hours ago, NancyJohnson said: Absolutely great call on the heatshrink. I just had a quick test...requires a couple of short lengths to cover the individual shafts and applied one after another. Works a treat. Brilliant! Cheers! No worries . Glad it helped you out Quote Link to comment Share on other sites More sharing options...
Bigwan Posted August 7 Share Posted August 7 I've seen thin wire used for this purpose, coiled helically around the pot shafts. 2 Quote Link to comment Share on other sites More sharing options...
bremen Posted August 9 Share Posted August 9 Heatshrink (or "heartstrings" as predictive text would have it) is right up there with wd40 and gaffer tape. Quote Link to comment Share on other sites More sharing options...
Jean-Luc Pickguard Posted August 9 Share Posted August 9 I had a pair of knurled-shaft pots on a bass where I wanted to fit knobs made for solid shaft pots. To make it more difficult one of the sticky-out halves on one of the pot shafts had broken off. My solution to this was to mix up a small amount of milliput epoxy putty and use it to build up the pot shafts. It was very easy (and satisfying) to get the resultant diameter to match that of a solid shaft pot just by shaping it with my fingers, checking with a dial caliper gauge as well as eyeballing it and offering up one of the knobs to check the fit. I left it overnight and fitted the knobs the next day where they went on straight without issue. Quote Link to comment Share on other sites More sharing options...
bremen Posted August 9 Share Posted August 9 Ee, bodgineering at its finest. 1 Quote Link to comment Share on other sites More sharing options...
m3nutter Posted August 19 Share Posted August 19 I had a reasonable amount of success with a grub screw knob using a shim made from coke can Quote Link to comment Share on other sites More sharing options...
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