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Old December 22nd 05, 12:32 PM posted to uk.radio.amateur,rec.radio.amateur.homebrew,rec.radio.amateur.policy
Brian Reay
 
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Default FAQ - revised version


"Spike" wrote in message
...

"I wouldn't recommend anyone whose background is in transistorised QRP
to tackle the neutralising of a compact PA stage with 600 VDC on the
anodes after replacing the antenna coupling capacitor "

Is there is a conflict here between the so-called 'FAQ' as laid down,
and its practice as suggested by its own adherent? Under what
circumstances should others 'repair with gusto' but not consider
adjustments to a valve PA? All PAs? Ones with 12V on the anode? What
are the limitations here? Is there a safety issue here? Where does one
go to get 'a suitable background'? The so-called 'FAQ' should make
things clear, not have the issues clouded by postings elsewhere.


Plus, of course, such a neutralisation isn't that difficult a task- being a
normal process after replacing a valve. I've done a couple of FT101's over
the years and I don't recall the PA being that compact.

Either way, assuming the technician involved had even a modicum of
experience in electronics, it is the sort of job I'd expect them to be able
to tackle.

73
Brian