Virtual Valve Museum
Virtual Valve Museum | search:
About the museumMuseum exhibitsUpdates, new exhibits etc.EquipmentSupporters
View the guestbookDocumentsValves wanted!Valves for sale or for tradeLinks to other sites, suppliers etc.

Mullard EN31 thyratron

Size This valve measures 115x40mm overall and has an octal base with 6 pins fitted.

 

Heater voltage 6.3V
Heater current 1.3A
Capacitances
Cin 6.1pF
Cout 4.2pF
Ca-g 2.3pF
Cg-h <1.5pF
Operating conditions as a triode
Max peak anode-grid voltage 1.5kV
Max peak anode voltage 1.0kV
Max anode current 10mA
Max peak anode current 750mA
Min grid to cathode resistance 750 ohms/V
Max grid to cathode resistance 750k ohms
Max heater to cathode voltage, cathode positive 100V
Max heater to cathode voltage, cathode negative 0V
Voltage drop 33V
Control ratio 35
Max frequency 150kHz
Operating as a half wave rectifier (grid connected to anode)
Max anode voltage 350V
Max output current 40mA
Min limiting resistance 100 ohm
Max capacitance 6µF
Max heater to cathode voltage 100V

 

Pin Function
1 -
2 Heater
3 -
4 no pin
5 Grid
6 no pin
7 Heater
8 Cathode
TC Anode
EN31

This file was last modified 15:49:32, Saturday November 12, 2011