HELP: Icom PS-125 switching PSU is hissing.

#10

June 7th 04, 12:11 AM

Edward L. Dowdy

Posts: n/a

Could it be the internal fan running?

73,
Ed KA9EES

"Bob" wrote in message
.. .
Okay, perhaps I'm being a bit picky, but here's the scoop:

I find a lot of switchers are audibly noisy. That is, they emit a 'hiss'
noise from their circuitry. Some units are barely audible, others are

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