[sdiy] JX-3P question

[David Moylan]

First guess to me is Automatic Gain Control.  First transistor as 
rectifier then a low pass filter then driver to control VCA.


On 1/18/26 12:13 PM, Richie Burnett wrote:
> Can anyone confirm what IC3 (BA662 OTA) is doing in the Noise 
> Generator part of the JX-3P schematic attached?
>
> At first I thought it was to allow the noise level in a patch to be 
> adjusted, but on closer inspection it looks like the OTA is in some 
> sort of local feedback loop, intended to keep the noise amplitude 
> constant, maybe?
>
> -Richie,
>
>
>
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-- 
David Moylan
Expedition Electronics
sonic adventures!