|[AMRadio] 100TH and 250TH advice and or comment|
rbethman at comcast.net
Tue Aug 25 12:06:30 EDT 2009
I have noticed that the 100THs and 250THS that are in their original
boxes, either not used at all, or maybe use for less than an hour to
test them, seem to be doing fine.
Their envelopes are crystal clear an can not see any sort of defect.
Then the ones that are in one of the two BC-610s that has the hours on
it, even though it last performed flawlessly, now appears to have gone
gassy with some milky white inside the envelope.
Is this perhaps due to over heating or maybe I should phrase this as the
convection cooling of these radios since they do NOT have fans.
It has always been metered and watched with a scope for observing
waveforms, and the wattmeter is the newer Model Bird with peak reading
built-in. (However true they really are!)
Bob - N0DGN
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