At 10:34 AM 20/02/00 -0000, Tony Allgood wrote: >Doesn't the young Bob Pease have a circuit in his book for this very >thing? > Why, yes he does! if you are referring to the low mV to squeak convertor on page 21 of 'Troubleshooting Analog Circuits'. Guess i'll be looking for a LM10 tomorrow.. paul perry melbourne australia