Scott Dorsey ) writes:
- - Bill - - exray@coquidotnet wrote:
BFoelsch wrote:
OK, who made the "Mity-Amp"? A 2 watt audio amplifier potted into a block
about 1" x 2" x 3". Worked great, lsted a long time, vanished off the face
of the earth. Wish I had a few left over

Well I'm here to save you. I've got an AIWA bookshelf job that has been
killed from several directions that has such a proprietary chip still
functioning that was good for something like 600 PMPO watts, or 1-2
watts for real people. I can make you a good deal but the postage may
prove to be prohibitive.

The Mitey-Amp was killed by the LM386 and some of the other similar
monolithic amp chips of the late seventies.

I remember those things sold at Lafayette.....
--scott

Actually, the LM386 was a relative latecomer. National had the LM380
in the early or mid seventies, and while it had 14pins, it used the same
amount of external parts as the LM386. In fact, I have a vague memory
that the LM386 is the same die, but in a smaller package.

But even before the LM380 (and I can't recall when it exactly hit),
there were plenty of audio IC amplifiers, though usualy requiring
a fair number of external components.

Michael VE2BVW