Tube-number record
1H4GT
0 archive entries
1H4GT is a tube type in the TubeDatabase archive (class: Low Mu Triode). Recorded specifications: brand Sylvania, construction Triode, socket 7-pin (non-miniature), and maximum plate voltage 180 V. The archive does not yet hold a photographed example of this type.
BrandSylvania
ClassLow Mu Triode
Base7-pin (non-miniature)
Construction
Primary TypeTriode
EnvelopeGT
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage180 V
Cathode Current50 mA
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 90 V | 850 | 11000 | 9.3 | 2.5 mA |
| Class A Amplifier | 135 V | 900 | 10300 | 9.3 | 3 mA |
| Class A Amplifier | 180 V | 900 | 10300 | 9.3 | 3.1 mA |
Application Notes
Horizontal operation permitted if pins 2 and 7 are in vertical plane. DC resistance in the grid circuit should not exceed 2 megohms. May also be used as a grid leak detector with 45 volts plate supply.
Datasheets
Datasheet: 1H4GT.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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