trying to find the right IC for a Ross Compressor...

[wheelsock8]

I found this Ross Compressor project. The problem is, it calls for a Transconductance Operational Amplifier, and the part number it gives seems to be obsolete. Anyone have recommendations on where I can get an appropriate IC? I plan on ordering from Digikey if they carry these.

Here's the project.

http://generalguitargadgets.com/index.php?option=content&task=view&id=148&Itemid=175

Thanks

[G.Neyrey]

CA3080E? Obsolete indeed.

http://www.americanmicrosemi.com/home/
These guys have 112 of 'em in stock. At $8.98 a piece. Yikes!

http://www.smallbearelec.com/home.html
Small Bear has 'em for a much more reasonable price.......$2.50

[Mark Hammer]

THe LM3080 from National Semiconductor also replaces it.

[Paul Perry (Frostwave)]

THe LM3080 from National Semiconductor also replaces it.

...not that it is in production either! "last time buy date 03/10/98" thanks for nothing National

[R.G.]

Half of an NJM13700 works fine too. Bit of effort shoehorning it in, but it works.

[Mark Hammer]

Maybe so, but at least it gives you another part number to ask/look for.

[wheelsock8]

will probably go with the one from small bear...looks like it will work fine and have always had a good experience ther

[markm]

NTE offers a sub for the CA3080, can't remember the part number though. 

[O]

NTE offers a sub for the CA3080, can't remember the part number though. 

NTE996 but it seems to be obsolete too, according to Mouser.

[mdh]

FWIW, I tried ordering the NTE sub (NTE996) from my local supplier in Sacramento, and they couldn't get it from their distributor.  And even if they had been able to get it, the price would have been about what Steve (Smallbear) charges.  So I figure I'll get a couple next time I order from Steve.  Until then, no Dynacomp for me.

[O]

Well poop... is it time to panic yet? (flashback to the SAD4096).

[hairyandy]

Hey guys,

I have a couple sleeves of 3080E's, probably about 80 all told.  I found them a couple months back at a surplus store in Colorado Springs for $0.32 each!  Obviously I bought all that they had at that price.  I don't want to sell these as that's Steve's gig not mine, but if anyone needs a couple I'd be glad to give you one or two, or maybe trade for something that I need like Burr Brown IC's.  I don't really have any good foam to ship them in either, maybe I'll try to find some packing peanuts and just stick the 3080E into the peanut to ship?  I'll figure it out.

These chips are RCA and some of them are marked 3080E, and some are 3080EX, 3080OE, and 3080OEX.  I don't know what the differences are but I'm sure they'll all work fine for a Ross comp.  If anyone wants one just email me here:

andy AT andyharrison DOT net

Thanks,

Andy