1B25
0 Tubes in archive
BrandRCA
ClassProtective tube
BaseSpecial
Construction
Primary TypeProtective tube
EnvelopeBulb
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Cathode Current30 mA
Audio Performance
Key Features
- Normal variations in ambient temperature have negligible effect on the tube's performance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Conduction | 120V | - | - | - | 30mA |
Application Notes
Designed for use as a protective tube. The energy dissipated in the tube should not be sufficient to establish a sustained arc.
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