Old 2n3904 envelope control for uglyface schematic

[Freddy205]

I was just wondering if anyone knew where to find a schematic for this. Charlie used it in his autocrash to good effect http://www.moosapotamus.com/autocrash/autocrash.htm
Thanks for any help.

[moisho]

You could easily get the CrashSynth part of the scheme... (just follow the link)
The env part should be like this:

[Freddy205]

Thanks alot, I'll give it a try. How come charlie's version seems to use 2 transistors then? Is it just a different type of envelope control?