| Rated electrical characteristics: |
| • Heating voltage, V | 6.3±0.7 |
| • Heating current, mA | 625±55 |
| • Anode voltage, V | 185 |
| • Voltage on the second grid, V | 185 |
| • Resistance in the cathode circuit, Ohm | 340 |
| • Current in the anode circuit, mA | 45±9 |
| • Current in the circuit of the second grid, mA | no more than 2.7 |
| • Slope of characteristic, mA/V | 7.5 |
| • Reverse grid current, μA | no more than 1 |
| Maximum allowable electrical parameters: |
| • The highest voltage on the anode, V | 300 |
| • The highest voltage on the second grid, V | 250 |
| • Maximum power dissipated on the anode, W | 12 |
| • Maximum power dissipated on the second grid, W | 2 |
| • The highest current in the cathode circuit, mA | 75 |
| • The highest voltage of the cathode-heater, V | 100 |
| • The highest resistance in the circuit of the first grid, mOhm | 2.2 |
| • Decor | glass miniature |