[sdiy] Experimental Moog 904a VCF project progress report - It's filtering! :O)
Gergo Palatinszky
Gergo_Palatinszky at epam.com
Mon Aug 24 12:24:31 CEST 2009
Sziasztok! - Hi All,
Specification:
- Should fit to eurocard pcb
- Rotary switch (4 pole 3 way) have to be pcb mounted (in the centre)
- Designed for THAT arrays but any kind of transistors can be used (might sometimes you will
have a little trouble with twisting the legs)
- Main aim is the project that everybody can compare modern component vs. old (original tr.s
and so...)
Current state: pcb plan ready, 3 pcbs were made. 2 almost complete. 1 has been finished.
The first sound has come out from it :O) but it seems I have to change some resistor/trimmer
values to be calibrated perfectly.
The first version of the pcb is very compact sometimes it's difficult to have enough space for
measurement/test and one cap. to get enough place...
The output of the project will be a pcb plan and might component list which will be published here
(no readymade PCBs, no kit - sorry)
Br,
Pala
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