[sdiy] 3080/13700 OTA question

[Tim Ressel]

> Clearly an error on the drawing.  My guess would be that
> the 10k and 2.2M resistors are swapped.  this would give you
> envelope time up to a few seconds and 1.5 mA of Iabc.
> 
> Ian

Interesting! I dug up a copy of the June '76 Popular Electronics article and it has the same values. Of course they both could be incorrect. I will try swapping the 10K and 2.2M right away. 

--TimR