[R-390] replacing components
Mike Andrews W5EGO
mikea at mikea.ath.cx
Fri Feb 20 13:38:48 EST 2009
On Fri, Feb 20, 2009 at 01:26:27PM -0500, Tim Shoppa wrote:
> KC2JD/4 writes:
> > Some times it is nearly impossible to get to the lug. Older radios
> > often are a rats nest of wiring having buried connections where it
> > might be necessary to remove several other components to get to the
> > one you want. The spiral wrap connectors are a very useful tool.
>
> I myself am not a recapping junkie, nor a "everything has to be
> original as assembled in Cedar Rapids" junkie.
>
> I do have a sort of vengance out for certain components but prefer to
> blow them up rather than take them out. (We called it "margining" back
> in the good old days.) I happen to think it's nuts to replace every
> single capacitor when it gets so extreme that even the ones that are
> run with 3% of their rated voltage in filament bypass use are accused
> of being "leaky".
>
> I think quiggs/spirals are a fine way to fix a radio without having to
> disassemble it all the way down to where the lugs can be seen.
I listen to my R-390 and R-390A receivers, and I try to fix 'em when
something craters. They're damned impressive pieces of work, but (to
me, anyway), they're not objects of religious significance, and if I
have to use a quigg or spiral to secure a component in a crowded area
-- something there's no shortage of in either radio -- I'll do it.
That does not mean that everyone has to do it, or that I do it every
time I replace a component.
I don't insist that anyone else put the roll of toilet paper so that
the loose end feeds frontwards or backwards, either. I see good reasons
for both orientations, based on circumstances.
Mr. Horse is a grease spot now, anyway. Can we go back to talking about
ukkumpucky and Sherwood SE-3s again? Please?
--
Mike Andrews, W5EGO
mikea at mikea.ath.cx
Tired old sysadmin
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