[ETO_Alpha] Alpha 87A Fan Noise

Thu, 18 Jul 2002 14:48:28 -0800 (Alaskan Daylight Time)

I had an unusually loud noise on my 87a - drove me nuts - I thought it was
the fan. I followed the instructions to the letter on the setup manual when
putting the transformer on the chassis. I even talked to the Alpha folks
about changing out the fan. What it turned out to be was the copper
shielding on the "Output T/R compartment" (owner's manual Page 8) that was
vibrating against the aluminum strip that runs from the back of the chassis
to the front where the top of the cabinet attaches with screws. I placed a
very small piece of rubber in between the copper shielding and the aluminum
strip, and the noise diminished dramatically. You may want to check that out

73,
Joe
WL7M
Fritz Creek, AK

-------Original Message-------

From: [email protected]
Date: Thursday, July 18, 2002 14:38:54
To: [email protected]
Subject: [ETO_Alpha] Alpha 87A Fan Noise

Is there any way to quieten down the nois from my (relatively) new 87A?
Joe WD5FHG

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