[Amps] Tube Info Y-739G?

[Cecil Acuff]

> 
> Bout all I can guess from photos is it's*apparently* relatively small 
> and *probably* a relatively low power triode that goes to UHF or even 
> SHF frequencies due to the coaxial nature of the connections. It 
> *appears* to be smaller than a 8874/3CX-400, but scale is very difficult 
> to guess without a reference. The only thing I could use for a reference 
> was the printing on the tube.
> 
> So that's pure guesswork.
> 
> 73
> 
> Roger (K8RI)

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The anode measures just over 2.5" in diameter and 1.5" tall.  
Overall length of the tube is 4.5".  
Weighs in at 6.95 lbs so it's fairly heavy.  

Cecil
K5DL