format filter bank/string filter

Tony Allgood oakley at enterprise.net
Fri Oct 2 18:40:20 CEST 1998


Hi all,

Anyone got some schematics for these multiple bank chorus units. My RS-09
which I sold many years ago had a great analogue one, bit noisy mind. I
built a full stereo one with two TDA1022s, but it was a very much trial and
error getting the time delay right and adjusting the right amount of
feedback and feedforward. It does sound good, but it would be nice to see
how the experts did it. I have a copy of Tim Orr's one published in ETI, it
has a log convertor to drive the high frequency VCO from the triangle LFO. I
found that sines were the best in mine.

Second point, I have just ordered another ten VCF pcbs. Same price, 25UKP if
you want one. This will probably be the last batch.

Regards,

Tony Allgood, Cumbria, UK

e-mail: oakley at enterprise.net

Rack mounted Moog VCF module. Details to be found at...

http://aupe.phys.andrews.edu/diy_archive/schematics/effects/filter.html






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