[sdiy] Thermosistor for XR-2206 Thomas Henry VCO

Matthias.Herrmann at jeppesen.com Matthias.Herrmann at jeppesen.com
Fri Sep 21 15:06:22 CEST 2007


synth-diy-bounces at dropmix.xs4all.nl wrote on 09/21/2007 02:33:47 PM:
> The board for the Thomas Henry XR-2206 VCO that Tom Bugs made calls for 
> a 2K +3500ppm/C thermosistor. Where do people (in EU?) source these 
> things? How bad would the drift be if I used a normal 2K resistor?
> 
> best,
> d.

since the 2k is placed in the feedbackpath of a inverting amplifier it 
should should be possible to use 1k and divide the value of the input 
resistor (100k) by 2 (=49.9k) to keep the ratio...

cheers,
matthias
___
www.modular.fonik.de

> 
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