1E7-GT
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BrandRadio Corporation of America
ClassTwin Power Pentode
BaseIntermediate-Shell Octal 8-Pin
Construction
Primary TypePentode
EnvelopeT-9
Sections2
Filament / Heater
Absolute Maximum Ratings
Plate Voltage135 V
Plate Dissipation1.5 W
Grid 2 Voltage135 V
Audio Performance
Typical THD5.5%
Power Output0.575 W
Key Features
- Twin Power Pentode
- Directly Heated Cathode
- Class A1 Operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| AF Power Amplifier Class A1 (Single Unit) | 90V | 1150 | 340000 | - | 3.8mA |
| AF Power Amplifier Class A1 (Single Unit) | 135V | 1425 | 260000 | - | 7.5mA |
| Push-Pull AF Power Amplifier Class A1 (Both Units) | 135V | - | - | - | 10.5mA |
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