[Elecraft] K3 with switching power supply??

[Joe Subich, W4TV]

 > I am on the way to change my old Astron RS35M power supply....

Why would you change out an Astron RS35M?  Unless you need to
make the K3 station portable where the weight and size of the
Astron is an issue, the RS35M will be both much more quiet and
much more reliable than any switcher.

Even if the Astron is getting a little unreliable, an overhaul
(replacing the diodes, pass transistors and possibly filter cap)
is likely to be more cost effective than purchasing a switcher.

For repair/overhaul information see: 
<http://www.repeater-builder.com/astron/astron-repair/astron-repair.html>

or for a more in-depth modification/overhaul that replaces the 723
regulator see: <http://www.bwcelectronics.com/articles/WP20A190.pdf>


73,

    ... Joe, W4TV


On 2/13/2017 1:51 PM, NOEL POULIN wrote:
> Hi,
> I am using a standard linear power supply with my new K3S.
> Anyboy using the ELECRAFT SWITCHING POWER SUPPLY WITH THE K3S????
> I am on the way to change my old Astron RS35M power supply....
> Which one is better??    Linear or Elecraft Switching power supply????
> Thanks
> Noel
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