[Boatanchors] Small triode drive

Barrie Smith barrie at centric.net
Thu Apr 9 21:10:13 EDT 2009


Looking at the data sheets for the 35TG and the 25T, I'm puzzled about the driving requirements.

A pair of 25Ts require 4.4 watts drive, at 1500 plate volts, for 150 watts out.  (A single 25T requires 2.2 watts drive.  I'm assuming that a push-pull pair would require 4.4 watts)

A single 35T/35TG requires 9 watts drive, at 1500 plate volts, for 141 watts out.

Since I'm hoping to drive this rig with a Meissner Signal shifter, I don't think that I can drive one 35TG with that.  I think I could drive a pair of 25Ts with the MSS.

What am I missing here?

73, Barrie, W7ALW


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