| Type | Substitutes | Base Diagram |
|---|---|---|
| 1H5GT | HD14, 1H5G, 1H5, 1H5GT/G |  |
| Web References | 1H5GT (RCA (HB3)) @ Franks Electron Tubes 1H5GT (Sylvania) @ Franks Electron Tubes 1H5GT (Tung-Sol) @ Franks Electron Tubes 1H5GT (Brimar) @ Franks Electron Tubes 1H5GT @ RadioMuseum.org | |
| Bulb | T-9 |
| Outline | 9-18 |
| Base | Small Wafer Octal, Metal Sleeve 7-Pin |
| Basing | 5Z |
| Top Cap | Miniature |
| Mounting Position | Any |
| Filament Voltage | 1.4 | Volts |
| Filament Current | 50 | Ma |
| Plate Voltage | 90 | Volts |
| Grid No. 1 Voltage1 | 0 | Volts |
| Plate Current | 15 | Ma |
| Transconductance | 275 | �mhos |
| Amplification Factor | 65 | x |
| Plate Resistance | 0.24 | Megohm |
| 1 | A resistor of at least 1.0 megohm should be in the grid return. The negative filament voltage should be connected to Pin 8. |