[sdiy] My first schematic, me too

Tim Stinchcombe tim102 at tstinchcombe.freeserve.co.uk
Tue Jan 2 22:52:44 CET 2007


> Did you ever find a way to get more of the glitch out of it?

The answer to this is essentially 'no', and what Paul points out...

> By the time anything complicated is done to fix it, you might 
> as well redesign the oscillator.

... seems pretty true in the Doepfer case, as the saw-to-tri topology uses
just the one transistor, and this limits the possibilities for a 'simple'
fix (at least it does with my experience - others better qualified might
find a way!). In Moog's paper 'Voltage-Controlled Electronic Music Modules'
(available at <http://moogarchives.com/>: 'articles', 'AES 1964') he gives
what looks to be a good de-glitching method on a saw-to-tri converter, but
which has 'more to it' than the Doepfer circuit, and so seems to have more
scope for doing something about it.

Tim
__________________________________________________________
Tim Stinchcombe 

Cheltenham, Glos, UK
email: tim102 at tstinchcombe.freeserve.co.uk





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