another matched triple.. LM389

[Harry Bissell]

I tried PartMiner... they say "call us". It looks like its long gone. Damn !!!

Nice idea. Do you have Williams schematic ??? I'd like to see it (I've been
thinking of
the amp as "heater" all day. Wonder how close I am...

:^) Harry

Paul Perry wrote:

> Was searching on google for stuff by & about the analog design gurus
> (ya never know) & found that Jim Williams once used a LM389 as
> a heater/matched transistor system. This chip is an audio amplifier
> with 3 uncommitted matched transistors!
> Since it was intended for toys and cheap consumer radios, tape players etc
> I guess there could be stacks out there.
>
> Good luck!
>
> paul perry Melbourne Australia
>
> BTW anyone here read Bob Pease book on safe driving yet?