So the MPQ6001 IC is 15 dollars on ebay with 10 bucks shipping and i need 2 of them. So needless to say i would be much happier just replacing this part with 4 independent transistors. If anyone had a few hints as to what transistors would do i would be grateful. I was thinking MJE15029G and MJE15028G. Here's the datasheet for the IC MPQ6001 datasheet and Application Note, Data Sheet, Circuit, PDF, Pinout | Datasheet Archive. Thanks everyone! BTW- This is the Bias IC for a Son of Ampzilla.
Unfortunately, companies cannot be expected to keep
> > manufacturing parts
> > forever, especially when the demand dwindles.
> > Regarding the GAS100A, it is
> > identically the same circuit that I also used in the
> > Sumo Amps and am still
> > currently using in my SST amps. Right now I'm using
> > a complementary pair of
> > TO-92 Darlingtons that are still available from ON
> > Semi. The circuit was
> > long ago made public. It is still the absolute
> > positive best thermal
> > tracking circuit ever created. If it ain't broke,
> > don't fix it.
> > James
> > manufacturing parts
> > forever, especially when the demand dwindles.
> > Regarding the GAS100A, it is
> > identically the same circuit that I also used in the
> > Sumo Amps and am still
> > currently using in my SST amps. Right now I'm using
> > a complementary pair of
> > TO-92 Darlingtons that are still available from ON
> > Semi. The circuit was
> > long ago made public. It is still the absolute
> > positive best thermal
> > tracking circuit ever created. If it ain't broke,
> > don't fix it.
> > James
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