BANG!
Yep. They were talking about the electrolytics.
Change 'em, before you have to change your underwear.
73, Alek.
VK6APK
On 24/12/2014 7:59 AM, John G3UUT wrote:
Sorry folks, are we talking about the string of smoothing
electrolytics or a ceramic RF filter cap here? I'm curious about this
as when I switched my 2m amp on recently which hadn't been used for
about a year there was a regular series of 'snaps', the frequency of
which gradually diminished as it warmed up. I was worried by this but
it didn't seem catastrophic and seemed to be improving with time so I
left the amp on. By the end of the contest the amp was usable
(typical) - I couldn't really use it earlier as the snaps put quite a
high level pulse of QRM into the RX path.
73 John G3UUT
On 23/12/2014 11:08, Andy Cook, G4PIQ wrote:
Oh yes. I heard this coming from one of our old Alpha 78s during CQWW
CW at 5U5Z some years ago. It did this for quite a few hours and then
in the middle of the night there was a big bang and the room filled
with smoke as one of the filter caps let go. It certainly woke the
operators up. I should change those caps now!
73
Andy, G4PIQ
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