CV1343 / ARP38 / KTZ73 HF pentode
 |
This valve measures 95x30mm overall and has an octal base. |
The prototype of this valve is KTZ73.
| Heater voltage | 4V | |
| Heater current | 250mA | |
| Max anode voltage | 250V | |
| Max screen voltage | 100V | |
| Mutual conductance | Va=Vg2=100V; Vg1=-1.5V | 2.2mA/V |
| Anode current | 5mA | |
| Screen current | 0.9mA | |
| Capacitances | ||
| Cag | 0.015pF | |
| Cae | 12.0pF | |
| Cge | 7.0pF | |
| Pin | Function |
| 1 | Metallising |
| 2 | Heater |
| 3 | Anode |
| 4 | Screen grid |
| 5 | Suppressor grid |
| 6 | no pin |
| 7 | Heater |
| 8 | Cathode |
| TC | Control grid |
This version is also marked
ARP38.
This version has an aluminium cover rather than a spray coating
KTZ73 is listed as a prototype for the CV1343. The EVS data says that CV1343 is a modified KTZ73. However, the KTZ73 is shown as having a metallised coating which the above example lacks. It does have a wire from the top of the base shell which would connect to the coating. Note that the shape is the same as the CV1343 / ARP38 above.