Type | Substitutes | Base Diagram |
---|---|---|
1T4 | 1L4, 1U4, 1AE4*, 1AF4*, 1AJ4*, 1AM4*, 1T4SF*, 1T4WA | |
Notes: | * - Parallel filaments | |
Web References | 1T4 (Mazda-Belvu) @ Franks Electron Tubes 1T4 (General Electric) @ Franks Electron Tubes 1T4 (Brimar) @ Franks Electron Tubes 1T4 @ RadioMuseum.org |
Bulb | T-51/2 |
Outline | 5-2 |
Base1 | Miniature Button 7-Pin |
Basing | 6AR |
Mounting Position | Any |
Filament Voltage D C | 1.4 | Volts |
Filament Current | 50 | Ma |
Filament Voltage D C | (Abs. Max.) | 1.6 |
Grid to Plate | 0.01 | ��f Max |
Input | 3.6 | ��f |
Output | 7.5 | ��f |
Plate Voltage | 90 | Volts |
Grid No. 2 Voltage | 90 | Volts |
Positive Grid No. 1 Voltage | 0 | Volts |
Total Cathode Current | 5.5 | Ma |
Plate Voltage | 45 | 67.5 | 90 | 90 | Volts |
Grid No. 2 Voltage | 45 | 67.5 | 90 | 90 | Volts |
Grid No. 1 Voltage | 0 | 0 | 0 | 0 | Volts |
Plate Current | 1.7 | 3.4 | 1.8 | 3.5 | Ma |
Grid No. 2 Current | 0.7 | 1.5 | 0.65 | Ma | |
Transconductance | 700 | 875 | 750 | 900 | �mhos |
Plate Resistance (approx.) | 0.35 | 0.25 | 0.8 | 0.5 | Megohm |
Grid No. 1 Bias for 10�mhos | -10 | -16 | -10 | -16 | Volts |
1 | Shield No. 316 connected to Pin 1. |