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Date: | Mon, 13 Oct 2008 23:56:59 -0400 |
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Bob,
I've had an RS-20A for over 20 years and an RS-35A
for 7 years. Both can be noisy and there is a vibration you can feel if
you touch the top cover. I've found that just moving it around a bit can
reduce any noise, although I've never experienced the roar you describe.
They also both clunk pretty good when powered up.
73, Steve KW3A
----- Original Message -----
From: "Bob Martin" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, October 13, 2008 8:13 PM
Subject: DC Power Supply Roar
> Earlier today, my almost new ASTRON 35 developed a really loud roar under
> load. It had been on receive for 2 or 3 hours. Then, At 5 Watts transmit
> on FM, it was hardly noticed. At about 40 Watts it is quite lout and at
> 100 continuous it can be heard throughout the entire basement. Just now, I
> turned it on and went through the cycle noted above with no noise heard.
> In
> stand-by I can't hear it at all now but when I was experiencing the
> problem,
> I could feel it vibrating ever so slightly. Will try it before I turn in
> tonight.
>
> Any thoughts?
>
> 73
> Bob Martin
> KC3FI
>
>
> EchoLink Node - 55127
> Please visit http://www.wan-leatonks.net.
>
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