On Thu, 11 Dec 2003 15:54:01 +1300, "Geoff Wood"
-nospam wrote:


"Kalman Rubinson" wrote in message

There are a number of so-called passive preamps which are nothing more
than a switch and a pot. Could fit this example.
47K should be about the max you'd ever encounter there ....

Should be. OTOH, several come with optional choices for the pot
impedance. Not every one chooses wisely.

Kal