[R-390] Capacitors - Testing and identification.

Jeff Adams physicist at cox.net
Sat Apr 2 06:21:44 EDT 2011


Paul, try Digikey.

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=715P22356KD3-ND

Jeff


At 04:25 AM 4/2/2011, Paul Galpin wrote:
>Hi guys!
>
>Two questions, relevant to R390s and other sets
>
>1. When I replace a capacitor, I test it by putting it across my 
>500V Insulation tester. Only if it comes down to infinity do I then
>put it into the receiver. What is the general opinion of this? Is it 
>adequate (for safety, of course, not capacitance value)
>
>2. Everybody in the States seems to know what are Orange drops, 
>BBODs, metallised foil, etc, etc. Over here in RSA, we don't seem to
>have those ranges and certainly not down here in Port Elizabeth.
>But we do have second hand capacitors. Where could one get pics of 
>these things to help ID the different sorts?
>
>
>Paul Galpin
>ZS2PG

Jeffrey L. Adams  KG4RZM  Physicist at cox.net

http://www.jeffreyladams.com

Mentor of the R390/R390A CD Archive

Motorola   R390A/URR 1956 14-PH-56    Serial 1409 w/ CY979
Collins    R390A/URR 1952 14214-PH-51 Serial 979 w/ CY979
Collins    R392/URR  1951 3075-PH-51  Serial 252 w/ T195 transmitter
EAC        R390A/URR 1960 23137-PC-60
Hammarlund SP-600-JX-26 1953          Serial 13432
Hammarlund SP-600-JX-17 Diversity     Serial 12384




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