[Boatanchors] Power supply update

[Ian Wilson]

The LM317 data sheet also shows how to use a large NPN pass transistor
in a complementary connection with a small PNP transistor. NPN power
transistors are much more common in junk boxes and TV salvage, etc,
in my experience.

73, ian K3IMW

On Tue, May 1, 2012 at 9:02 AM, Jim Wiley <jwiley at alaska.net> wrote:

> Joe -
>
>
> My error - the current boost transistor needs to be a PNP type, not NPN
> - so a 2N3055 won't do.  Perhaps a  MJ15016G  (about $3.00 each at
> Mouser) would be a good choice.
>
>
> -  Jim, KL7CC
>
>
>
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