CRACKLEBOX lm709 replacement

loss1234 · Posted: Thu Aug 30, 2007 1:10 pm Post subject: CRACKLEBOX lm709 replacement

Just to let people know, though i am no expert, I just made a really cool sounding cracklebox with a stock MOUSER part. The NTE 909d (14pin dip)
works very well as a cheap and easy to find replacement for the lm709. I was afraid to try it since everyone said you cant use a modern opamp, but this is listed on mouser as a replacement for the 709.

check it out.

doobedy · Joined: Jan 12, 2009 Posts: 19 Location: Los Angeles

Just a quick confirmation on this somewhat ancient post for future cracklebox builders, the NTE 909 or 909d do work exactly the same as the LM709 series op amps.

I just breadboarded a metal can version I found locally at Frys and it does everything a cracklebox should Smile

etaoin · Joined: Jun 30, 2005 Posts: 761 Location: Utrecht, NL

And for people who don't know, I still have eight SN72709 lying around that I'll give away to anyone who pays shipping (which will be around $2 worldwide). I can't guarantee they work, so I'll give two each to the first four people who want one. PM only please, no need to mess up loss's thread.

etaoin · Joined: Jun 30, 2005 Posts: 761 Location: Utrecht, NL

My SN72709 are all spoken for.