Tube-number record
7604
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BrandWestinghouse
ClassVHF Power Triode
BaseSpecial / none
Filament5 V @ 8 mA
Construction
Primary TypeTriode
EnvelopeGlass with external radiator
Sectionssingle
Filament / Heater
Heater NotesOxide Coated Unipotential
Absolute Maximum Ratings
Plate Voltage4000 V
Plate Dissipation600 W
Grid 1 Voltage-500 V
Cathode Current600 mA
Audio Performance
Key Features
- Forced-air-cooled external radiator
- Oxide coated cathode
- High power output at VHF frequencies
- Vertical mounting
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class C Telegraphy (Condition 1) | 2500 V | — | — | 20 | 272 mA |
| Class C Telegraphy (Condition 2) | 3500 V | — | — | 20 | 400 mA |
| Class AB R-F Linear Amplifier Grounded Grid | 3500 V | — | — | 20 |
Application Notes
Maximum ratings apply to 60 megacycles and operation with reduced input is permissible to 350 megacycles. When tube is operated anode down, cooling of the base end is necessary.
Datasheets
Datasheet: 7604.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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