[sdiy] 1496 VCA?

[Dave Manley]

This looks very interesting (too bad I'm at work and
can't study it!). When using a real device will you
still need trim-pots to get zero gain for zero CV?

-Dave

P.S. I'm a big fan of LTspice also.


HOSHUYAMA wrote:
> 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.
>>