PowerWerx P/S Noise Problem Clarification

[W0UCE]

Perhaps I did not explain the noise problem, cause and cure situation
correctly.  One of the P/S was purchased from a friend, the other I bought
new.  The one purchased from my friend had been used; the input power select
switch on the back had be changed to 110V as it should be for 110v
operation.

I had both P/S sitting side-by-side and had not yet changed the power in
220/110 switch setting to 110 on the new supply.  I mistakenly picked up the
new one and used it with the K-3.  Operating the P/S on 110 with the input
power select on 220 caused the K-3 to sound like a Marconi Spark Gap
Transmitter.  

The fix was simple, change the input power switch to 110. "My bad"  

73
Jack

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[w0mu]

We ordered a Dell computer for the Fire Department and the guy that it
was for was having all sorts of trouble.  I checked it out, reseated the
memory,  connectors etc....and then looked at the power supply and it
was set to 220V!  I can't believe it worked at all.  Check the voltage
setting on anything that allows for 110/220.


On 9/13/2011 9:14 AM, W0UCE wrote:

> Perhaps I did not explain the noise problem, cause and cure situation
> correctly.  One of the P/S was purchased from a friend, the other I bought
> new.  The one purchased from my friend had been used; the input power select
> switch on the back had be changed to 110V as it should be for 110v
> operation.
>
> I had both P/S sitting side-by-side and had not yet changed the power in
> 220/110 switch setting to 110 on the new supply.  I mistakenly picked up the
> new one and used it with the K-3.  Operating the P/S on 110 with the input
> power select on 220 caused the K-3 to sound like a Marconi Spark Gap
> Transmitter.
>
> The fix was simple, change the input power switch to 110. "My bad"
>
> 73
> Jack
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html

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