FA-13
0 Tubes in archive
BrandGeneral Electric
ClassIndicator Tube / Resistance Vacuum Gage
BaseLead wires
Construction
Primary TypeIndicator Tube
EnvelopeLime Glass
Sections2
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage6 V
Audio Performance
Key Features
- Fast, continuous, direct reading
- Measures condensable vapors such as water vapor
- Used in bridge circuit with FA-14
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Indicator (0 microns pressure, dry air) | 3V | - | - | - | 180mA |
| Indicator (75 microns pressure, dry air) | 3V | - | - | - | 226mA |
| Indicator (195 microns pressure, dry air) | 3V | - | - | - | 271mA |
| Indicator (1000 microns pressure, dry air) | 3V | - | - | - | 327mA |
| Indicator (Atmospheric pressure) | 3V | - | - | - | 353mA |
Application Notes
Recommended for use in a bridge circuit in combination with the FA-14 Compensator Tube for temperature and voltage compensation.
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