Tube-number record
5618
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BrandRCA
ClassVHF Power Pentode
BaseMiniature 7-pin (B7G)
Construction
Primary TypePentode
EnvelopeT-5-1/2
Base MaterialSmall-Button
Sections1
Filament / Heater
MaterialCoated
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation5 W
Grid 2 Voltage125 V
Grid 1 Voltage-125 V
Audio Performance
Typical THD10%
Power Output1.4 W
Key Features
- VHF Power Pentode
- Miniature Type
- Series or Parallel filament arrangement
- Intermittent Commercial and Amateur Service (ICAS)
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| AF Power Amplifier & Modulator - Class A1 (Series) | 250 V | 3500 | 12000 | — | 16 mA |
| AF Power Amplifier & Modulator - Class A1 (Parallel) | 250 V | 3600 | 12000 | — | 19 mA |
| RF Power Amplifier Class C (40 Mc) | 300 V | — | — | — |
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