Pete1967 Posted August 15, 2013 Share Posted August 15, 2013 Hi All, I've just finished my latest build which has turned out really nicely. It's a 5 string fret less with a piezo bridge and a Bart magnetic pickup hooked up to a buffer/pre/eq circuit I picked up in the US. The CCT was pre wired and designed for two magnetic pickups so used a dual concentric pot to control the volumes of the pickups, independently of the piezo. So for the moment I've used one gang of the concentric pot but I'd really like to replace it. Simples I thought... How wrong was I. It's a 10k linear taper pot, nothing unusual in that, but I need a mini pot (16mm) with a threaded shaft of 8-10mm to pass through the top, and a standard 6mm knob shaft, either solid or split. Can I find one, can I hell... Can anyone help me with a source of such a beast, or have one I can buy? Thanks all. P Quote Link to comment Share on other sites More sharing options...
hubrad Posted August 15, 2013 Share Posted August 15, 2013 Tried Maplin/Farnell/RS type places? Sounds easy enough. Quote Link to comment Share on other sites More sharing options...
neepheid Posted August 16, 2013 Share Posted August 16, 2013 Gah, that's annoying. Axesrus have the physical size of pot you require, but don't do a 10K lin, 25K is the lowest they go. You could ask them where they get theirs, or if they could obtain a 10K one? Quote Link to comment Share on other sites More sharing options...
Pete1967 Posted August 16, 2013 Author Share Posted August 16, 2013 [quote name='hubrad' timestamp='1376608680' post='2176930'] Tried Maplin/Farnell/RS type places? Sounds easy enough. [/quote] Thanks chief... yes I've drawn a blank on all the obvious places.. Maplin/Farnell&CPC/RS/All Parts/WD/Best Bass Gear/EBay, and I've Googled till my fingers bleed! I did find some in Japan but I have to buy 1000! Quote Link to comment Share on other sites More sharing options...
Pete1967 Posted August 16, 2013 Author Share Posted August 16, 2013 [quote name='neepheid' timestamp='1376643799' post='2177176'] Gah, that's annoying. Axesrus have the physical size of pot you require, but don't do a 10K lin, 25K is the lowest they go. You could ask them where they get theirs, or if they could obtain a 10K one? [/quote] Physically, that's it... good shout on the Axesrus. I'll drop them a line and see if they can source or help. Cheers! P Quote Link to comment Share on other sites More sharing options...
paul_5 Posted August 16, 2013 Share Posted August 16, 2013 If they can't find one then try Steve at doctortweek.co.uk he's usually got loads of weird stuff in stock. Quote Link to comment Share on other sites More sharing options...
hubrad Posted August 16, 2013 Share Posted August 16, 2013 http://www.maplin.co.uk/miniature-single-gang-potentiometers-2203 JM71N is the 10K Linear Quote Link to comment Share on other sites More sharing options...
Pete1967 Posted August 16, 2013 Author Share Posted August 16, 2013 [quote name='hubrad' timestamp='1376647187' post='2177228'] [url="http://www.maplin.co.uk/miniature-single-gang-potentiometers-2203"]http://www.maplin.co...ntiometers-2203[/url] JM71N is the 10K Linear [/quote] Yeah... been there, thanks. That one only has a 6.5mm thread unfortunately which won't go through the top! I've found this [url="http://uk.mouser.com/Search/ProductDetail.aspx?R=PDB181-GTR01-103B0virtualkey65210000virtualkey652-PDB181GTR01103B0"]http://uk.mouser.com/Search/ProductDetail.aspx?R=PDB181-GTR01-103B0virtualkey65210000virtualkey652-PDB181GTR01103B0[/url], which is perfect, but a 12 quid delivery charge makes it a very expensive pot! Paul - thanks for the steer on Doctortweek. Have mailed Steve. P Quote Link to comment Share on other sites More sharing options...
Dad3353 Posted August 16, 2013 Share Posted August 16, 2013 [quote name='Pete1967' timestamp='1376646602' post='2177213']... I did find some in Japan but I have to buy 1000![/quote] Involves slight cheating, but you could, perhaps, ask for a sample before engaging on a full bulk order..? You might even get one free (if your morals are up to the subterfuge...). Quote Link to comment Share on other sites More sharing options...
icastle Posted August 17, 2013 Share Posted August 17, 2013 How about using a 25K pot and stick a couple of 15K resistors (wired in series) across the outer two terminals. That'll give you near enough 10K. Quote Link to comment Share on other sites More sharing options...
Woodinblack Posted August 17, 2013 Share Posted August 17, 2013 It will give you 10K but it wouldn't be that linear any more Quote Link to comment Share on other sites More sharing options...
icastle Posted August 17, 2013 Share Posted August 17, 2013 True, it's far from ideal, but when all other avenues are exhausted the 'workaround' is king. Quote Link to comment Share on other sites More sharing options...
JapanAxe Posted August 17, 2013 Share Posted August 17, 2013 The 25k is worth a punt. Quite often circuits will work perfectly well with a pot value changed by a factor of 2 either way - try it and see. Also if the only issue is the hole diameter in the top of the bass, you could always enlarge the existing hole using a tapered reamer. Quote Link to comment Share on other sites More sharing options...
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