[AMPS] Capacitor Identification

[Pete Raymond]

I was wondering if anyone had any information on the following
capacitor.
My main concern is how much voltage it can handle.
The capacitor is 1 3/4" in dia. and 9/16' thick.  Yellow in color with
the following written on it.  HI-Q HPA 42BC, 6800mmf+40-20%.  It has
threaded ends.  Hopefully I can use it as a blocking cap in a linear
tank circuit.  Appreciate any info anyone can provide.  73 Pete N4KW

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