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VCR138 CRT

Size This CRT measures 335x85mm overall and has a 12 contact base.

 

Heater voltage 4V
Heater current 1A
Max final anode voltage 2.5kV
X-plate sensitivity 357/Va3 mm/V
Y-plate sensitivity 780/Va3 mm/V
Typical operating conditions
Final anode voltage 1.2kV
Second anode voltage 200V
Beam current 15µA

 

Pin Function
1 Grid
2 Cathode
3 Heater
4 Heater
5 Anode 1
6 Anode 2
7 Internal conductive coating
8 Y2
9 X2
10 Anode 3
11 X1
12 Y1

The CRT normally operates with A1, A3 and the conductive coating tied together, and so manufacturers were free to strap these internally and omit connections from pin5 and 7.

 

VCR138
Quarter view Gun

This file was last modified 14:42:08, Tuesday September 02, 2014