TT-25
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BrandBendix
ClassGas and Special Tubes
BaseSmall Cap RTMA C1-1
Construction
Primary TypeSingle Convectron
EnvelopeGlass
Base MaterialMetal caps
SectionsSingle
Filament / Heater
MaterialNickel
Absolute Maximum Ratings
Audio Performance
Key Features
- Fine wire sensing element
- Gas convection based vertical reference
- Bridge circuit application
- Electronic deviation detection
- Minimized null shift
- Reduced hysteresis
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Bridge Circuit (2 units at 90 degrees) | - | - | - | - | - |
Application Notes
Two units mounted at 90 degrees form a bridge circuit to determine deviations from vertical. Sensitivity can be increased by reducing angle between tubes to 60 degrees. Magnetic shielding may be required.
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