[sdiy] Changing Pot Values

[Roy J. Tellason]

On Thursday 24 June 2004 06:52 am, mike:prophecysound wrote:
> Yes, but .... are you using the pot as a variable resistance (two pins
> used) or variable voltage divider (three pins used)? What circuit /
> context? If being used as a voltage divider you might not need to change
> the overall pot resistance.
>
> Meanwhile:
> http://www.geofex.com/Article_Folders/potsecrets/potscret.htm
> could well provide you with the answer you seek!

Not bad,  that site.  I'd seen the add-a-resistor trick before,  to get audio 
taper,  but didn't know that it'd work for reverse log taper as well.  And 
his points about source and load impedances weren't touched on where I'd seen 
it before.

Aside from that,  have you noticed how the damn things aren't being used 
hardly at all any more?  I went out to radio shack a while back and bought 
myself a weather band radio.  My main issue was that it should run off 
batteries _or_ AC,  which the one I got does.  I didn't realize until after 
I'd gotten it home that the damn thing doesn't have a volume control!  Just a 
couple of buttons for that function,  only steps numbered 1-7,  and even 
leaving it on 1 is on the loud side if things are real quiet.  Jeez...