[TenTec] station power supplies

[Mike Bryce]

Wade,

Take a big, and I mean a really big gulp, and try an LED light. Gosh they're expensive, but they don't have the RFI that the CFI seem to manufacture

I have several 110 Edison based LED lights in my shack. They too heat up, but nothing like a good 'ol 100 watt light bulb.

mike, wb8vge


On Sep 7, 2012, at 1:30 PM, wade staggs wrote:

> *I was taught that a Transformer with No Load on the Secondary Winding,
> uses Only what is known as Magnetizing Current. In all of the Books from my
> learning, this Magnetizing Current is Very Small. The Only Current Draw
> from a Linear Power Supply when Not in use, should be the Magnetizing
> Current and also the Small amount needed to keep the Capacitors Charged.
> Switching Power Supplies Are More Efficient because they do not cause as
> much Heat. The Series Pass Transistors in a Linear Supply, DO Generate Heat
> ..... When Current is being drawn. Therefore, they are Not as efficient as
> Switching Supplies. I have Never heard a Birdie in the Receiver with my
> Astron 35 Amp Supply. Being the owner of several Switchers, I choose to
> keep the Astron Linear PSU Online and also, Charging Emergency Back Up
> Batteries. *
> *Roy, you are correct about Linear Supplies to the point that they use VERY
> LITTLE Power when just idling................... Same argument with CFL Vs
> Standard Light Bulb. The Standard Light Bulb will help heat the room you
> are in during winter months. During the Summer, CFL lighting will take a
> Big Load off of your Air Conditioner because they generate much less heat
> while in use. But, I have one CFL Lamp that causes pure Havoc with the
> small AM Radio that Miss Brenda, uses in the kitchen......... Darned if you
> do and Darned if you don't.... We listen to a Very Good Christian Station
> on AM during the day.*
> *
> 73 de Wade/KJ4WS*
>