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ThuyTN 17th January 2013 03:19 PM

Metal can audio opamps?
Hi guys,

Just wondering if anyone could do me favor listing popular audio opamps that are packaged in the metal can?
I only have experience with the lme49710/20, opa627/637 .

Anything else should I pay attention to?


Osvaldo de Banfield 17th January 2013 04:31 PM

I know the LM348, and in fact I have 3 of them.

Killingbeans 17th January 2013 04:52 PM

Bust isn't LM348 a quad opamp? How do you squeeze that into a TO99 package?

Osvaldo de Banfield 17th January 2013 04:54 PM

Sorry , typo, they are LM748CH from ST Microelectronics. Lot # 98805.

JMFahey 17th January 2013 05:17 PM

In the early 70's I used metal can LM741. (8 pin).
Way back then, the cutting edge of technology. ;)

jcx 17th January 2013 05:26 PM

RCA CA3140 - bought some in High School - used them to fix a Mech E analog computer dynamics demo box in college

ThuyTN 17th January 2013 05:54 PM

Thanks. Those parts are hard to find these days.... Anything worth looking at, especially from BB or TI?

indianajo 17th January 2013 06:06 PM

LM4562HA shows in a dual in a can, but good luck in finding stock. You'd probably have to buy 100 and wait for the factory to make them. Get in line before the economy heats up.

Antoinel 17th January 2013 06:15 PM

LM318 came in a metal can.

jcx 17th January 2013 06:35 PM

how about ceramic? - I think I have a dozen PMI OP27

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