[GreenKeys] 4PR65A

[Scott Johnson]

It is a derivative of the  4-65A rated for pulse use as a hard tube
modulator, typical uses are IFF and radar beacon modulators.  
Most Eimac "P' tubes will stand off far more voltage than the generic , and
are usually very rugged, the element concentricity is held to tighter
tolerances.

Scott W7SVJ

-----Original Message-----
From: greenkeys-bounces at mailman.qth.net
[mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of Ray
Sent: Wednesday, November 09, 2011 7:02 PM
To: Boatanchors at mailman.qth.net; Hallicrafters
Cc: GreenKeys at mailman.qth.net; milsurplus; r-390 at mailman.qth.net
Subject: [GreenKeys] 4PR65A

I HAVE HAD THIS TUBE FOR A LONG TIME.   Oops.   What is it use in?   I have 
not seen it on any parts lists or price lists of the usual sellers so don't
know what it is it's use.

Ray 

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