Re: Drat. NTE is gone, and they took the last 5-GHz PNP with them.

john larkin <jlarkin_highland_tech> wrote:

On Wed, 4 Sep 2024 17:54:19 -0400, Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote:
 

The NTE2403, similar to the BFT92, but a bit better overall.  Dunno who
actually made them. (I saw the news on s.e.repair today.)
 
Rochester claims to have 1,500,000 of the 2SA1462 (1.8 GHz) for 20
cents, but that's all she wrote.
 
I have a couple of reels of BFT92s and one of BFG31s, so I'm good for
protos and small production, but I can't use PNP wraparound bootstraps
for customer designs anymore. :(
 
Barstids.
 
Cheers
 
Phil Hobbs

 
There must be some property of this universe that prefers N-type
devices.

There seem to be a couple.  The matter/antimatter asymmetry means that
getting p-type behavior in a practical device relies on holes, and holes
have much lower mobility than electrons.

The solid state physics notion of an electron is a bit confusing to lots of
people, because despite sounding like an isolated particle, it’s just as
much a collective phenomenon as a hole, with properties determined by the
band structure of the solid.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs  Principal Consultant  ElectroOptical Innovations LLC /
Hobbs ElectroOptics  Optics, Electro-optics, Photonics, Analog Electronics