[sdiy] 1496 VCA?

HOSHUYAMA houshu at muj.biglobe.ne.jp
Wed Jun 18 18:56:38 CEST 2008


Hello List,

I designed VCAs and a exponential converter using 1496s.
(Not the International Modular)
They worked well on LTspice.

VCAs with short English explanation:
  http://houshu.at.webry.info/200806/article_3.html
Exponential Converter: 
  http://houshu.at.webry.info/200806/article_4.html

I hope some of you enjoy the idea.

Sam HOSHUYAMA
Saitama, JAPAN

Tom Arnold wrote:
> While looking through the International Modular book ( thanks Loscha! ), I
> noticed that the VCA was 1496 based.  A little more digging around online
> also shows the PAIA 9700 VCA is 1496 based.  I'm assuming there is some
> reason they arn't used more often considering how simple the circuits are
> and how cheap the 1496 is.  If anyone is interested in the circuit, its on
> PDF page 26/booklet page 28 left side.  34 parts at about a total cost of
> $3.  Really inexpensive.
> 
> Also there is a lowpass-only version of the PWM based filter on PDF page 9.
> 
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