Potentiometers with click positions

[Pookus]

I have an amp project in the early planning stages and want to use potentiometers with set click positions. Are these widely available?

[mybass]

[quote name='Pookus' post='459603' date='Apr 10 2009, 08:31 PM']I have an amp project in the early planning stages and want to use potentiometers with set click positions. Are these widely available?[/quote]

Not knowing the values you will need but........I seem to remember that the Status Bass people used them on basses. Another potentiometer company I used a while back is OMEG [email protected] phone 01342 316253 they are or were near East Grinstead, Sussex.

[~tl]

Are you wanting actual potentiometers (i.e. ones that vary continuously but also have set positions that the knob clicks to) or just multi-way switches (i.e. ones that only can sit in certain positions)? I've not seen the first type commonly available with more than one position, like the ones used for blend controls. The second type are commonly called "stepped attenuators" and are big in the audiophile sector. You can buy fancy ones for lots of cash, but they are easy enough to make with a rotary switch (such as [url="http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=0327642"]this[/url]) and a bunch of resistors. I'm sure there are sites out there which give you the correct resistor values for logarithmic scales.

[b]Edit:[/b] This one is pretty good for calculating the values...

[url="http://homepages.tcp.co.uk/~nroberts/atten.html"]http://homepages.tcp.co.uk/~nroberts/atten.html[/url]

[b]Edit 2:[/b] And this one is a nice summary of the theory...

[url="http://www.euronet.nl/%7Emgw/background/attenuator/uk_attenuator_1.html"]http://www.euronet.nl/%7Emgw/background/at...tenuator_1.html[/url]

Edited April 11, 2009 by ~tl

[Pookus]

[quote name='Pookus' post='459603' date='Apr 10 2009, 08:31 PM']I have an amp project in the early planning stages and want to use potentiometers with set click positions. Are these widely available?[/quote]

Stepped attenuators! Thats what I need and I've found what I'm looking for too here [url="http://www.goldpt.com/compare.html"]http://www.goldpt.com/compare.html[/url]

Edited April 11, 2009 by Pookus