[Milsurplus] Micamold caps

[W7QHO at aol.com]

In a message dated 11/23/06 9:46:55 AM, scr287 at sbcglobal.net writes:


> Has anyone noticed that prewar and early war production radios
> seem to have less problems with failed components than mid and
> late war production radios?  I have noticed this, but since I
> only have a limited number of radios to base a conclusion on,
> I can't say whether or not it is just coincidence or not.
> 
Jack,

Hmmm...   Interesting.   Hadn't noticed a trend.   All the Micamolds in my 
1939 BC-342A were bad, same as in my 1944 M model (and   BC-348K).   Had to 
replace all the caps in my 44 SCR-522 receiver as well.   They looked like micas, 
the parts list called them out as micas but when I busted a couple open they 
sure were papers!   Wartime expediency or fraud maybe?   Anyway, go figure....

The GRC-9 radios used brown colored Micamolds up into 50's production.   Have 
had to replace several of these in my three units and others here on the West 
Coast in recent years.   Later production situation here than most of the WW2 
stuff but the same problems seem to be developing.

Happy thanksgiving,

Dennis D. W7QHO
Glendale, CA
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