Re Mixturtrautonium

[Martin Czech]

> 
> In the meantime, there are no more theoretical problems
> with the subharmonic device,
> and it works very well :
> I use an integrator with a fixed Voltage input.
> The capacitor is shortcutted via a 4066.
> The 4066 is triggered by a 4024 divider, which is resetted
> by a 16-channel Multiplexer-demultiplexer.
> Then i use the Reset signal (modified to a short Voltage peak
> by caps and diods), provided by the Multi-demultiplexer for
> the 4024 to trigger the 4066.
> This leads to a very simple design with free "programmable"
> 1/n sawtooth generating frequency divider.
> The outgoing signal amplitude then must be increased,
> depending on the n. (As longer the integrator works before
> resetting, as higher the amplitude will be)
> 
> With this design, 1 VCO with 3 subharmonic generators
> will fit on a 14 x 8 cm board.
> 6 of those units, together with VCA's, VCF's and so on,
> and you will have a nice "extended" Mixturtrautonium.
> (extended, because the original instrument does not have VCF's,
> for example. Only static filters).
> 
As far as I understand you have now introduced fixed frequency slave
osc. which are hard synced by the master. Will the amplitude of the
slaves not deminish, if the master frequency rises? For every octave
the slave output should go down by 0.5.  Or am I completely wrong ?

m.c.