[sdiy] ASM-1 type VCO freq. range

Magnus Danielson cfmd at swipnet.se
Sat Jan 26 01:11:57 CET 2002


From: Henri Kovalainen <hekovala at kovalainen.fi>
Subject: [sdiy] ASM-1 type VCO freq. range
Date: Sat, 26 Jan 2002 00:00:42 +0200 (EET)

> And now for something completely different...
> 
> I'm also trying to decide what design I should use as the basis of a new
> bank of VCOs for my modular. There's plenty of info about the ASM and its
> VCOs but I haven't found anything about the frequency range people have
> achieved with the design. I mean, the range on which the wave forms are
> still roughly what they should be.

I'd had mine operating over a frequency range of 21 octaves of which
about 20 was near any exponential curve. The measurements where not
that good (taken with a Tek scope, which has realy bad resolution) and
needs to be remade. There where not tricks involved in getting this
range thought.

Mine peaked at about 160 kHz, so did also a certain Moog modular ;O)

Cheers,
Magnus



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