Tube-number record
7738
0 archive entries
7738 is a tube type in the TubeDatabase archive (class: Receiving Tube). Recorded specifications: brand Sylvania, construction Triode, socket Miniature 7-pin (B7G), and maximum plate dissipation 5 W. The archive does not yet hold a photographed example of this type.
BrandSylvania
ClassReceiving Tube
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 225 mA
Construction
Primary TypeTriode
EnvelopeT-5 1/2
Sections1
Filament / Heater
Heater NotesCoated Unipotential Cathode
Absolute Maximum Ratings
Plate Dissipation5 W
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Continuous Class C Service | 200 V | 9500 | — | 80 | 12 mA |
Application Notes
In Sonobuoy or battery applications where long life is secondary to power output, cathode current rating may be increased to 50 mA and grid current to 15 mA.
Datasheets
Datasheet: 7738.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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