Base | | Noval |
Base to Shoulder Height | | 40mm ±2.5mm |
Diameter | | 22.5mm |
Envelope Height | | 49.5mm |
Max Amplification Factor (filament 6.3V, plate 250V, grid -2V, grid resistance 1MΩ) | | 110 |
Max Cathode Current | | 10mA |
Max Cathodes-Heater Voltage | | ±200V |
Max Filament Voltage Parallel | | 6.6V |
Max Filament Voltage Series | | 13.2V |
Max Grid Back Current (filament 6.3V, plate 250V, grid -2V, grid resistance 1MΩ) | | 0.2mA |
Max Grid Resistance per Triode Fixed Bias | | 1MΩ |
Max Grid Resistance per Triode Self Bias | | 2.2MΩ |
Max Heater Current 6.3V | | 370mA |
Max Heater Current 12.6V | | 185mA |
Max Plate Current (filament 6.3V, plate 250V, grid -2V, grid resistance 1MΩ) | | 2mA |
Max Plate Current Difference between triodes (filament 6.3V, plate 250V, grid -2V, grid resistance 1MΩ) | | ±40% |
Max Plate Dissipation per triode | | 1W |
Max Plate Voltage | | 300V |
Max Temperature at most heated part of envelope | | 368 |
Min Amplification Factor (filament 6.3V, plate 250V, grid -2V, grid resistance 1MΩ) | | 81 |
Min Cathode-Heater insulation resistance (filament 6.3V, cathode-heater voltage ±200V) | | 20MΩ |
Min Heater Current 6.3V | | 325mA |
Min Heater Current 12.6V | | 162mA |
Min Plate Current (filament 6.3V, plate 250V, grid -2V, grid resistance 1MΩ) | | 0.75mA |
Min Slope of characteristic (filament 6.3V, plate 250V, grid -2V, grid resistance 1MΩ) | | 1.1mA/V |
Nominal Heater Current 6.3V | | 347mA |
Nominal Heater Current 12.6V | | 173mA |
Total Height | | 56.5mm |