264B
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BrandWestern Electric
ClassTriode
BaseSmall four-pin thrust type
Construction
Primary Typetriode
Envelopeglass
Base Materialsilver-plated pins
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage100 V
Audio Performance
Power Output33 W
Key Features
- Small
- low-noise
- filamentary triode
- silver-plated base pins
- high input resistance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Recommended Operating Conditions | 60V | 620 | 11700 | 7.3 | 2.35mA |
| Recommended Operating Conditions | 90V | 560 | 12800 | 7.2 | 1.9mA |
| Recommended Operating Conditions | 100V | 580 | 12400 | 7.2 | 2.1mA |
| Maximum Operating Conditions | 90V | 640 | 11300 | 7.2 | 2.8mA |
| Maximum Operating Conditions | 100V | 630 | 11400 |
Application Notes
Particularly where exceptionally low tube noise or exceptionally high input resistance are required. Replaces 264A.
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