Tube-number record
6623
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BrandCentral Electronic Manufacturers
ClassPower Triode
BaseSpecial / none
Construction
Primary TypeTriode
EnvelopeGlass/Metal (Forced-Air Cooled Radiator)
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage5000 V
Plate Dissipation2500 W
Grid 1 Voltage-1000 V
Cathode Current10000 mA
Audio Performance
Key Features
- Thoriated-tungsten filament
- Forced-air cooled anode
- Two grid terminals for low-inductance connection
- Brazed radiator construction
- Precise electrode alignment
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Radio-Frequency Power Amplifier and Oscillator Class C Telegraphy (60 mc) | 5000 V | — | — | 22 | 1000 mA |
| Plate-Modulated Radio-Frequency Power Amplifier Class C Telephony | 3500 V | — | — | 22 | 1140 mA |
| Audio-Frequency Power Amplifier and Modulator Class B (Two Tubes) | 3000 V | — | — | 22 | 2800 mA |
Application Notes
Designed for modulator, amplifier or oscillator in AM, FM, and TV broadcasting service. Operation at 100 mc is permissible with plate voltage and input reduced to 80% of maximum ratings.
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