CV1473 photocell
 |
This valve measures 75x29mm overall and has a B4 base. |
This is a caesium-on-silver photocell. The CV number is written by hand. It carries the handwritten serial number 55237, with '35' and '72' being written, again by hand, either side of the broad arrow symbol. The voltage of this cell is marked as 80V.
| Min. extinguishing voltage | 100V |
| Working voltage | 80 to 110V |
| Min. sensitivity | 75µA/lumen |
| Pin | Function |
| 1 | Anode |
| 2 | n/c |
| 3 | n/c |
| 4 | Cathode |
Pin 2 is available as an additional anode connection if required - the EVS data suggests that manufacturers should bear this in mind.
