[Hallicrafters] FYI 8121

[jeremy-ca]

The 8122 is used in Hallicrafters and National. The 8121 is the same tube 
electrically BUT the fins are oriented for horizontal cooling.

And the 8072 is the same without either anode cooler.

Carl
KM1H


----- Original Message ----- 
From: "Walt Cates" <cateswa at msn.com>
To: "hallicrafters" <hallicrafters at mailman.qth.net>
Sent: Tuesday, December 25, 2007 11:21 AM
Subject: [Hallicrafters] FYI 8121


The 8121, 2000v, 150 watt plate dissipation, 250 watts @ 440mhz, 100 watts @ 
50mhz.
73's wd0gof
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