[sdiy] Who was first - ADSR with 555 timer ???

[James Dunn]

harrybissell at wowway.com wrote:
> Title says it all. Everyone uses the circuit but what is the
> earliest documented implementation of it ???
>
> H^) harry
>
>
> Harry Bissell & Nora Abdullah 4eva
>
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>   

The Moog Prodigy used a 556 for separate filter and VCA envelopes in 
1979...