Tubes again

Chuck McGregor cbmcg at COMCAST.NET
Wed Mar 15 00:16:57 EST 2006

At 08:53 PM 3/14/2006, doc wrote:

>>254 (weird tube with side connector)  1      $???

Heintz & Kaufman made a type 254, called a Gammatron, apparently a triode, 
good for 500watts, class C RF,  max freq 175 Mc, plate dissipation 
100watts,  amplification factor 25.  Dimensions 7 in hi, 2-1/2 in 
diameter.  Apparently H&K liked to bring the grid lead out thru a small 
diameter pin on the side of the tube. Data from a 1945 catalog sheet.

--Chuck N7RHU 

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