[R-390] EAC "Rocketship" IF Deck Recap.

[Bob Weiss]

Finished up the IF deck recap last night.

Ran all the removed caps through capacitance and leakage tests using a 
Heathkit IT-11.  All of the tubular Westcaps and the Vitamin Q tested 
OK, one of the CDE film caps showed leakage (and signs of physical 
delamination), and the BBODs were leaky at under 25V applied. The big 2 
uF AGC cap (C551) was leaky above 400V applied, despite a 500V rating.

C551 was pretty easy to restuff. The impregnant was a soft paraffin wax, 
not mineral oil as in others I have restuffed. It was also a Westcap 
brand, FWIW.

So all new 630V rated film caps installed, given a good wipedown to 
remove the grime, run the tubes through a tube tester, and ready to move 
on to the AF deck. IF looks much nicer with all the caps of the same make.


73,

Bob Weiss N2IXK