Tube-number record
FA-13
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FA-13 is a tube type in the TubeDatabase archive (class: Indicator Tube / Resistance Vacuum Gage). Recorded specifications: brand General Electric, construction Display / CRT, socket Flexible / flying leads, and maximum plate voltage 6 V. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassIndicator Tube / Resistance Vacuum Gage
BaseFlexible / flying leads
Construction
Primary TypeDisplay / CRT
EnvelopeLime Glass
Sections2
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage6 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Indicator (0 microns pressure, dry air) | 3 V | — | — | — | 180 mA |
| Indicator (75 microns pressure, dry air) | 3 V | — | — | — | 226 mA |
| Indicator (195 microns pressure, dry air) | 3 V | — | — | — |
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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