Subj : RE: Power supplies
To   : Kent Timm
From : Holger Granholm
Date : Sat Aug 13 2016 09:40 am

In a message on Saturday 08-12-16 Kent Timm said to Jimmy Anderson:

Hi Kent and Timm,

> home made antenna, but haven't hooked it up yet... Have to get a
> power supply and get it setup. :-)

KT> Power supplies are always a big thing that doesn't get that much
KT> attention, if you can, get a linear power supply instead of a
KT> switching one.

All modern rigs today are transistorized, and can be directly supplied
from a 12V (13.8V) source. I have since many years back been using a
stationary, or car battery, as a main power supply for all rigs.

Parallel to that I have a linear 13.8V/19A power supply feeding the
battery, set to 13.8V, only when I'm using the transceivers.

This way I need only one power supply for all the rigs/appliances, that
can be fed with 12, and I also have emergency power if/when needed.

KT> I have a old Drake PS7 linear power supply, it's huge, 33 POUNDS
KT> about the size of a breifcase and no RF birdies to interfere.

Since I sold my Drake TR-4, only the Heathkit HA-14 PA Power supply
needs direct mains voltage, since I don't have the mobile PS for it.


CU L8ER, Sam, OH0NC

aka Holger

___
* MR/2 2.30 * "Sam", OH0NC - Aland Islands / 20 deg. E / 60 deg. N


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