30A5
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ClassPower Pentode
BaseE7-1 Miniature Button 7-Pin
Filament30V @ 150mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesHeater voltage is 5 volts less than 35C5 tube
Absolute Maximum Ratings
Plate Voltage150 V
Plate Dissipation7.5 W
Grid 2 Voltage150 V
Cathode Current100 mA
H-C Voltage150 V
Audio Performance
Typical THD11%
Power Output2.1 W
Key Features
- Large output
- Transformer-less radio use
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Power Amplifier | 100V | 9200 | 22000 | - | 43mA |
Application Notes
Specifically designed for transformer-less radio receivers as a power amplifier.
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