[sdiy] Analog computers

[jhaible at debitel.net]

> The 1000 state variable filters were made to filter some
> sound, the structure of the filter is known.
> The main problem of the OTA (distortion vs. noise)[...]

You don't have to use 3080's (;->)

My point was that you don't need a VC resistor (complicated),
but just a voltage controlled multiplying current source
(much easier, lots of options, from cheap and dirty to
remarkably good).

JH.


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