Junkbox switch for a switcher

On Thursday, 25 August 2016 14:30:43 UTC+1, dagmarg...@yahoo.com  wrote:

> Still, for $1 at the thrift store he gets a good switch, pre-fab
> magnetics, and a PWM chip if he wants it. That's not bad.

I've never seen a PWM chip in a cheapo wallwart. Ever.


NT