VCR138 CRT
 |
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.
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