ampage
Tube Amps / Music Electronics
For current discussions, please visit Music Electronics Forum.

ampage archive

Vintage threads from the first ten years

Search for:  Mode:  
previous: John Greene There's definitely something not ri... -- 11/26/1999 4:15 PM view thread

Re: Dod envelope filter 440, HELP!

11/26/1999 6:23 PM
Terry
Re: Dod envelope filter 440, HELP!
I previously didn't use a socket so the opamp could be blown, but i am using a socket now.  
 
Do you mean to measure in between the 2 22ks, one going to ground and one going to + voltage?  
 
I used a LM358 dual opamp  
Here is the pinout :  
http://www.escape.ca/~romanetz/Schem/dodenvf1.gif