101J
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BrandWestern Electric
ClassLow-power filamentary triode
BaseFour-pin, bayonet type
Construction
Primary Typetriode
Envelopepear-shaped
Sectionssingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage190 V
Cathode Current10.9 mA
Audio Performance
Power Output0.275 W
Key Features
- Low-power filamentary triode
- Pear-shaped bulb
- Higher insulation between elements
- Special contact metal on base pins
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Recommended Operating Conditions | 100V | 1147.8 | 5750 | 6.6 | 6.3mA |
| Recommended Operating Conditions | 130V | 1000 | 6500 | 6.5 | 4.8mA |
| Recommended Operating Conditions | 130V | 1160.7 | 5600 | 6.5 | 7mA |
| Recommended Operating Conditions | 160V | 1000 | 6500 | 6.5 | 5.4mA |
| Maximum Operating Conditions | 190V | 1065.6 | 6100 |
Application Notes
Used as modulator and demodulator in carrier systems, and as voice-frequency or carrier-frequency amplifier in telephone repeater equipment.
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