{SPAM?} [sdiy] Tempco question

Tony Clark clark at andrews.edu
Tue May 21 20:29:52 CEST 2002


> The Bergfotron vco is a modification of the ASM1 VCO.  The tempco resistor
> is the bottom resistor in a voltage divider between the output of the CV
> summing amp and the input of the expo converter npn pair.  So we are talking
> a +/- 50 ohm tolerance between a 56k and a 1k.   Geez, at 50/57000 I guess
> that's 0.08% of the voltage divider.  Should be ok, no???

   You should be okay, the CV-scale trimmer should compensate for any 
deviation.

   Tony

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