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| Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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24th Feb 2016, 5:02 pm
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#1 |
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Octode
Join Date: Jun 2013
Location: Huddersfield, West Yorkshire, UK.
Posts: 1,795
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Concentric Potentiometers
Hi Peeps. Somewhere in this group I saw reference to a company that specializes in making pots. I need a 10+10K Lin pot Concentric. I would be grateful for any leads in that direction.
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Should get out more. Regards Wendy G8BZY |
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24th Feb 2016, 5:06 pm
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#2 |
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Octode
Join Date: Jun 2013
Location: Huddersfield, West Yorkshire, UK.
Posts: 1,795
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Re: Concentric Potentiometers
Sorry peeps. Got the info. Relaxxxxxxxxxxxxxxxxxxxxxxxxxx. Bloor Edwards, Wales.
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Should get out more. Regards Wendy G8BZY |
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24th Feb 2016, 6:17 pm
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#3 |
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Guest
Posts: n/a
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Re: Concentric Potentiometers
I wonder how many that could be "concentricized" and how many could be useful?
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24th Feb 2016, 7:37 pm
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#4 |
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Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,536
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Re: Concentric Potentiometers
Well...
If the outer tube is 6.3mm OD and you can get precise custom tube; if 0.4mm wall thickness is enough and if you can live with a 2.3mm central shaft and 0.1mm radial gaps between tubes, you could stack up five  Woohoo!
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....__________ ....|____||__|__\_____ .=.| _---\__|__|_---_|. .........O..Chris....O |
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25th Feb 2016, 12:07 am
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#5 |
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Octode
Join Date: Jun 2013
Location: Huddersfield, West Yorkshire, UK.
Posts: 1,795
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Re: Concentric Potentiometers
Hi Merlin and Chris. Three is the highest I have seen on Tektronix scopes... well that's what was posted on Ebay.
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Should get out more. Regards Wendy G8BZY |
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25th Feb 2016, 2:39 pm
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#6 |
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Octode
Join Date: Jun 2013
Location: Huddersfield, West Yorkshire, UK.
Posts: 1,795
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Re: Concentric Potentiometers
Bingo. Blore Edwards have come up trumps, £11 for a "one off". Thanks to all.
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Should get out more. Regards Wendy G8BZY |
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25th Feb 2016, 3:39 pm
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#7 |
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Dekatron
Join Date: Aug 2013
Location: Wigan, Greater Manchester, UK.
Posts: 9,433
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Re: Concentric Potentiometers
And you thought that would be hardest part of the job, for a one off special i think that is very reasonable.
Frank |
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29th Feb 2016, 2:25 pm
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#8 |
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Octode
Join Date: Jun 2013
Location: Huddersfield, West Yorkshire, UK.
Posts: 1,795
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Re: Concentric Potentiometers
I didnt add Vat or P P... finishes up at £19 but that is well worth paying as without Blore it would have been impossible.
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Should get out more. Regards Wendy G8BZY |
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29th Feb 2016, 2:37 pm
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#9 |
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Nonode
Join Date: Dec 2012
Location: Stockport, Greater Manchester, UK.
Posts: 2,117
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Re: Concentric Potentiometers
That's quite amazing, looks like they also do custom rotary switches
Blore Edwards Ltd When I had professional dealings with their predecessor AB Components in the 80s they (AB) seemed to be contemptuous of anyone wanting small orders let alone custom services |
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1st Mar 2016, 3:44 pm
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#10 |
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Nonode
Join Date: Dec 2012
Location: Stockport, Greater Manchester, UK.
Posts: 2,117
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Re: Concentric Potentiometers
I wonder if this thread might be moved to 'Where To Get Sets and Parts' as it links to a valuable resource
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