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EEV VX2511 hydrogen thyratron used in airborne radar.

It measures 205x65mm. The glass carries the markings:

EEVC
135

I have no actual data for the VX2511 but it was superceded by the CX1120, whose modern equivalent is CX1191. Specs for this are:

Heater voltage 6.3V
Heater current 12.5A
Pulse modulator service
Peak forward anode voltage 16kV max
Peak inverse anode voltage 5kV max
peak anode current 400A max
Average anode current 0.4A max
Peak output power 3.2MW max
Single-shot or crowbar service
DC forward anode voltage 15kV max
Peak anode current 5000A max
Repetition frequency 1 pulse per 10s max

 

 .VX2511
Thanks to Ron Sheldrake for information on this valve

This file was last modified 15:55:28, Saturday November 12, 2011