F708
0 Tubes in archive
BrandPhilips
ClassModulator / Power Output Triode
Construction
Primary TypeTriode
EnvelopeGlass
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage450 V
Plate Dissipation12 W
Cathode Current26 mA
Audio Performance
Key Features
- Specifically built for plate voltage modulation
- Suitable as output tube for low power amplifiers
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Characteristic | 400V | 1800 | 4500 | 8 | 20mA |
Application Notes
Two F 708 tubes are sufficient to modulate a Philips TC 04/10 transmitter tube. Recommended rectifiers for supply: Philips 1805 or 1561.
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