pots

[Chris Crosskey]

Rob wrote....


>Anyone know of a source for 2M2 rev log pots (Radiohm)?
>




Take a LINEAR 2M2 pot and put a 220K resistor in parallel across the 
centre tap and the <HIGH> side.  This get's you a really clean rev-log 
curve. If you strap the resistor from centre to low side you get a log 
pot, generally with a better curve than a cheap log pot too. If you 
don't believe me, run the plots for ten positions and join the 
dots....
chrisc