R/E/P Community
R/E/P => Mastering Dynamics => Topic started by: DOMC on March 17, 2011, 03:12:53 AM
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anyone know a good place to get precision pots for "thing" i am building a prototype of?
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Stepped or no steps?
Lots of places...
http://www.parts-express.com/wizards/searchResults.cfm?searchFilter=audio%20potentiometer
http://www.pennyandgiles.com/Conductive-Plastic-Rotary-Potentiometer-pd-101,3,,.php
http://www.marchandelec.com/att.html
http://www.hificollective.co.uk/components/potentiometers.html
It all depends on what you want to spend and the precision you desire.
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Define 'precision'.
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On recent 'things' I've been tinkering with ... I'd given thoughts to Veneer dials.. .
Anyone know of good sources for that. seems like it might be a good way to get more fine-tuning, and better recall ability without the expense of stepped switches.. (however when I priced it out, it wasn't that much different).. Just need to find a good source.
any drawbacks to using them?
Also ... seems like we're only a few years away from good availability of digitally controlled analog components... seems like that would take away the need for expensive mechanical processes for precision gains, etc ... the ULN8 uses them, and I've heard of other prototypes doing that kind of thing. excellent L/R matching, very fine tuned (0.1dB, etc ..) Anyone have any knowledge to share about using those options?
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On recent 'things' I've been tinkering with ... I'd given thoughts to Veneer dials.. .
Anyone know of good sources for that.
any drawbacks to using them?
Mouser and Digikey both carry multi-turn pots and Vernier dials for them. You can get good precision but cranking the pot five or ten times around for a setting kinda sucks for daily use.
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Just be careful they are not wirewound. <Think variable inductor>
This place has tons of them used at good prices
http://www.electronicsurplus.com/SearchResults.aspx?Keyword=potentiometers
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I was thinking along the lines of elma or pallazo
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I haven't looked in a long time but I'm pretty sure you'll be hard pressed to find something much better than 10% in a potentiometer. One manufacturer I know of buys huge amounts of them in order to get matched pairs where needed.
There might be a retailer somewhere who will hand select matched paris for a premium, but if you really want matched pairs you'll probably want switches.
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I was thinking along the lines of elma or pallazo
Those are switches, not pots.
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Coolio