EF732
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ClassHigh slope r.f. pentode
BaseB8D/F
Filament6.3V @ 150mA
Construction
Primary TypePentode
EnvelopeSubminiature
Sections1
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage165 V
Plate Dissipation1.1 W
Grid 2 Voltage155 V
Grid 1 Voltage-55 V
Cathode Current16.5 mA
H-C Voltage200 V
Audio Performance
Key Features
- High slope
- Subminiature
- Mounting position Any
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Amplifier | 100V | 5000 | 260000 | - | 7.5mA |
Application Notes
Direct soldered connections to the leads of this valve must be at least 5mm from the seal and any bending of the leads must be at least 1.5mm from the seal. Cooling: Mount in metal clip which conducts heat to a heat sink.
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