[R-390] OT - CX-1363/U test lead

Stan Gammons s_gammons at charter.net
Sun Jun 12 22:39:34 EDT 2016


Hi everyone,

Once upon a time I owned an R-390A and I was an idiot to get rid of it. 
I still think it's the greatest tube receiver ever made.  Does anyone 
have one they want to give away :)

Anyway, this may be a bit off topic, but I'm looking for a schematic of 
the CX-1363/U test lead. The URM-25D I have didn't come with a test 
lead.  I know the URM-25X series was used to align the R-390 and other 
military gear made during this era, so I was hoping someone on the list 
could confirm if this test lead is simply a .1 uf capacitor @ 400 vdc 
between the input and output with a 510 pf capacitor @ 500vdc across the 
output to ground?


73

Stan
KM4HQE





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