You have probably never seen a design like this before, have you?
I bought it in-79 and built it in my VOX WHA-SWELL
Then i sold it to a friend the same year
Now I've got it back in original shape as i left it 20 years ago!
The dist sounds like an old tube toaster with all the noice you can get!
Well it crackles and spitts sometimes but it's not a big deal!
Notice that the normal power supply input(pin=11) is used differently!