[Elecraft] Power Werx S5-30DV Switching P/S "Heads Up"

[Ken K3IU]

I recently purchased the SS-30DV switcher. There are 2 
stickers on the outside of the box that say it is an 
International Model and you need to change it to 115V AC 
input by sliding the selector on the back.The manual (one 
sheet) clearly states in the first sentence of a paragraph 
titled "Input Voltage Selection"  that "The power supply is 
set up for 230V AC input as shipped from the factory." It 
continues with a description about how to change it to 115V 
AC. I can't find it now, but I'm sure there was also a 
separate insert on bright paper warning that it was set for 
230V AC.

73, Ken K3IU
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

On 9/12/2011 9:21 PM, W0UCE wrote:
> I recently acquired two Power Werx S5-30DV Switching Power Supplies.
>
>
>
> While the P/S are nice and small, work on 110 / 220 and easily powered my
> K-3 and TS-480,  BEWARE...  The P/S come from the factory set for 220V
> (Slide Switch Selection on the back)  The documentation sheet with the P/S
> doesn't mention the factory default setting of 220.
>
>
>
> If you power a K-3 or most likely any other rig without changing the input
> voltage setting to 110 if you run the P/S on 110 and don't change the input
> voltage switch to 110,  you will have terrible AC on transmit when the RF
> level of the radio is increased over 10 Watts.
>
>
>
> 73,
>
> Jack W0UCE
>
>
>
>
>
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