750T
0 Tubes in archive
BrandEimac
ClassPower Triode
BaseJohnson No. 214
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage10000 V
Plate Dissipation750 W
Cathode Current1000 mA
Audio Performance
Power Output3500 W
Key Features
- Thoriated tungsten filament
- High power triode
- Supports 10kV plate voltage
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B Audio (2 tubes) | 4000V | - | - | 15 | 950mA |
| Class B Audio (2 tubes) | 5000V | - | - | 15 | 860mA |
| Class B Audio (2 tubes) | 6000V | - | - | 15 | 834mA |
| Class C Telegraphy | 3000V | - | - | - | 713mA |
| Class C Telegraphy | 4000V | - | - | - | 625mA |
| Class C Telegraphy | 5000V | - | - | - | 600mA |
| Class C Telegraphy | 6000V | - | - | - | 625mA |
| Static Characteristics | 5000V | 3500 | - | - | 1000mA |
Application Notes
Frequency for maximum ratings 40mc. Base fits Johnson No. 214 socket.
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