Tube-number record
6904
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BrandBomac Laboratories, Inc.
ClassTR Tube
BaseWaveguide
Construction
Primary TypeOther / special
EnvelopeIntegral cavity
SectionsDual
Filament / Heater
Absolute Maximum Ratings
Plate Dissipation250 W
Cathode Current0.2 mA
Audio Performance
Key Features
- Combined shutter and dual broad-band TR tube
- Balanced duplexer operation
- Integral cavity type
- Fixed tuned gaps
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Ignitor | 287.5 V | — | — | — | 0.1 mA |
Application Notes
The shutter provides protection of the receiver crystal from nearby transmitters when the radar set is not in use. Operates with suitable short-slot hybrid junctions.
Datasheets
Datasheet: 6904.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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