Identifying Newer Caps

[David C. Hallam]

Don't know If I can help, but often J was used to indicate a decimal 
point.  So, 50J might be a 50 pF.

David
KW4DH

David Hollander wrote:
> I have a box of new doorknob caps with newer (cryptic to me) markings.
> 
> The working voltage is clearly marked but the capacitance is not.
> 
> One reads 282M
> 
> Another 5J
> 
> Another reads 50J
> 
> Another reads 30J
> 
> A bunch of them have the capacitance but not the working voltage.
> 
> Need a plate coupling cap for my 4-1000 amp I built in the early 90's 
> The coupling cap in their got fried years ago and is not readable as to 
> value. What is the suggested value/voltage for the coupling cap? Will be 
>  running around 5KV plate voltage. Want to get this back on for this 
> weekend's DX contest.
> 
> Tnx and 73,
> 
> Dave N7RK
> 

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