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902 / 110E/234 CRT (902P1)

Size This CRT measures 188x50mm overall and has an octal base.

 

This is an electrostatic deflection and focus CRT. It has a 6.3V/600mA heater and was used as a pulse indicator in the SC-2. (ref: Tube Lore)

Data for the 902A is as follows:

Heater voltage6.3V
Heater current600mA
Typical operating conditions
Anode 1 and 3 voltage400V
Anode 2 (focus) voltage57 to 120V
Grid voltage-20 to -60V
X-plate sensitivity56V/cm
Y-plate sensitivity42V/cm

 

PinFunction
1Anode 1, Anode 3, X2 and Y2
2Heater
3Anode 2
4X1
5Grid
6Y1
7Heater
8NC

 

 902
Quarter view

Data provided by Bill Nichols

This file was last modified 15:38:49, Saturday November 12, 2011