[R-390] Advice on Replacing Components

[Tisha Hayes]

Unless the component leads are as tight as a banjo string you usually can
get a little bit of leeway while desoldering a connection. Then, while it is
still hot you can use a dental pick, hemostats or needle nose pliers and
unwrap the component from the attachment point.

It is important that you do not overheat the 60 year old terminal strip or
tube socket as the bakelite seems to turn into magic dust when heated.
Practice on a junque piece of equipment (ok, ok, a "classic" piece of gear
that you or your friends do not have an undying love affair with for it's
collectors value).

It is a good point that you need to understand where a component is in a
circuit and what function it performs. In many cases you can get the job
done by pulling the tubes from the sockets. To me, it gets a little tweaky
when the capacitor is tied into an inductor and maybe a Q spoiler resistor.
Trying to get a measurement on those capacitors is tough, even with a
Sencore LC-53.

Work through the stages and fix things that are broken first before you get
mod happy or decide to replace every grid resistor with a 1% metal film.

The technique I like the least is when the component lead is cut in half and
two loopies are made with the ends and a big blob of solder glues the mess
together. (looks icky, makes me want to wash my hands repetitively or count
the dimples on a golf ball (yea, a little bit of OCD here)).
-- 
Ms. Tisha Hayes/ AA4HA
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Factory certified interoceter repair center.
"Remember, use only genuine interoceter parts."
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"Quaesita Marte Tuenda Arte"*