newbie asks: current/true voltage contolled vco?
Michael Schmid
michael.schmid at gmx.at
Sat Apr 8 23:58:05 CEST 2000
I'm building the modular of penfold's book
http://aupe.phys.andrews.edu/diy_archive/schematics/synths/penfold/penvco.html
"The VCO", he writes, "remains a current rather than a true voltage
controlled type." Sorry for my newbieness, but what's the difference.
Btw: it didn't work the first few times, but as I touched the pcb with
my fingers by accident, it functioned. I bridged some solder jonts of
IC2 (CA3046) ...
... and it worked. Guess which: Pin 3 (emitter of Q1 and Q2, which are
not used anyway) is bridged with 12 (base of Q5) and 13 (emitter of Q5).
Maybe someone can explain this.
Thanks a lot,
Michael
(Could you please stay in an electronicnewbiespeech?)
--
michael schmid // linz // austria
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