[sdiy] Re: Formant PRO

[Les Mizzell]

ROUGH TRANSLATION

Hi Fred, >

over SYNTH DIY I come with them

I try also a Formant to build and so far, > to
2 VCO
VCF 24DB MOOG
VCF multi-mode
mixers
outputs
Noise
LFO
ring modulator
VCA Dual LIN
VCA EXP
ADSR

however like already said, the book have many errors to resemble (I have
some to hire into the errors would list > angereiht) > - VCO's function
however the alignment......????  only are one exactly adjust on branches
0.002 mA, 0.004 etc. (pag. 43  around then later again with p2 and p7 off???
haste you a better method???

I have (God is thanks) a very good musical hearing, and I rather rely on it.
I adjust the VCOs once roughly with p2 and then only with p7, whereby I hear
and stop the oktaven. I make that also only if the VCO is completely
structured. That is to be measured more simply for me than constant
Miliampere. But in principle one must proceed probably in such a way as
required in the book. I had large difficulties with the heating of the VCOs
and in my diary on my homepage (www.analog monster.de) described; perhaps
you look times past. But I am pleased that there are people, which made
similar experiences except me still.

Perhaps can we exchange experiences - VCF 24DB moog functions however, but I
do not point like well > the transistors select??? > P9 adjust which it
automatically begin to swing, which inch I with it > have an interview??

I built only the 12db VCF, and there one does not have to select
transistors. The natural oscillation develops then, if one untwists the
resonance fully, also without input signal. Then a sinus oscillation
develops
(I have by the way the new VCO's built) > I for attempt further and hopes
for further good tips in SYNT DIY or general in NETWORK> (I can hire
together tinker, have my PCB's made etc., but when it I am not functioned to
something lost) me goes it exactly the same. But so far I always found a
solution, and perhaps I can help. Greeting Carsten (www.analog monster.de)