6AM5
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ClassPower Amplifier Pentode
BaseMiniature Button 7-Pin
Filament6.3V @ 0.2mA
Construction
Primary TypePentode
EnvelopeT-5-1/2
Base MaterialGlass
SectionsSingle
Filament / Heater
Heater Notesa.c. or d.c.
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation4 W
Grid 2 Voltage250 V
Cathode Current25 mA
H-C Voltage50 V
Audio Performance
Typical THD10%
Power Output1.4 W
Key Features
- Miniature Type
- Unipotential Cathodes
- High Power Output
- Pentode or Triode connection
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Pentode (Operating Point 1) | 200V | - | - | - | 20mA |
| Class A1 Pentode (Operating Point 2) | 250V | 2600 | 150000 | 390 | 16mA |
| Class AB1 Push-Pull (Cathode Bias) | 250V | - | - | - | 25.6mA |
| Class AB1 Push-Pull (Fixed Bias) | 250V | - | - | - | 32mA |
| Class A1 Triode Connection | 250V | 3000 |
Application Notes
For Pin 2, Cathode and Grid No. 3 are connected. Pin 6 is listed as No Connection. For triode connection, Screen (Grid No. 2) is tied to plate at socket.
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