wrote:
I=92m just about finished refurbishing a Heathkit SB-401 amateur
transmitter that has, according to the manual=92s parts list, five 0.2uF
=93resin=94 capacitors. What are these things and how reliable are they?
Does conventional wisdom dictate that such caps should be replaced?

They are called "resin-dipped" because of the outer casing. You don't really
care about the outer casing, you care about what is inside. If the dielectric
is plastic, keep it. If it's paper, replace it.

I=92ve searched the web for information on this, but only get hits
concerning Black Beauty caps, which most always need to be replaced.

Where are the caps and what will happen if they fail? In a receiver IF,
a bad cap can take out an IF transformer, but if it's just driving another
tube stage, the consequences of failure are minimal.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."