[Milsurplus] RAK-7 caps - Bill's latest radio adventure

[Bill Cromwell]

Hi,

Thanks for the input on this. Apparently there is a difference between 
these paper caps and the 'other' paper caps. In any event I intend to 
use my Heathkit cap tester on them. It's not all inclusive but seems (so 
far) to show me leaky caps and an approximate value of capacitance. I 
have shotgunned the caps in several command receivers and since I got 
the cap tester I went over them and found many of them did not show 
*any* leakage. I did measure the resistors and found most of them far 
out of spec.

My understanding of the failure mode for the mica caps is the "whisker 
growth" - metal migration inside the cap. It is my intention to test all 
of those too. I think the statistics I looked at to arrive at my best 
guesses of what to expect came from several sources.

I remember how that radio used to perform and it is now way down the 
hill. More later.

73,

Bill