Tube-number record
19T8
0 archive entries
19T8 is a tube type in the TubeDatabase archive (class: Triple-Diode Triode). Recorded specifications: brand General Electric, construction Triode, base Glass, socket Noval (B9A), maximum plate voltage 300 V, and maximum plate dissipation 1 W. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassTriple-Diode Triode
BaseNoval (B9A)
Filament18.9 V @ 0.15 mA
Construction
Primary TypeTriode
EnvelopeT5-1/2 Glass
Base MaterialGlass
SectionsTriode and Three Diodes
Filament / Heater
Heater NotesCoated Unipotential Cathode
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier (Triode Unit) | 100 V | 1200 | — | 70 | 0.8 mA |
| Class A Amplifier (Triode Unit) | 250 V | 1000 | — | 70 | 1 mA |
Application Notes
For ratio-detector circuits in FM, it is recommended that diodes number 2 and 3 be used. Except for heater rating, the 19T8 and the 6T8 are identical.
Datasheets
Datasheet: 19T8.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results