Tube-number record
TT-27
0 archive entries
TT-27 is a tube type in the TubeDatabase archive (class: Gas and Special Tubes). Recorded specifications: brand Bendix, construction Other / special, socket Special / none, and maximum plate voltage 10 V. The archive does not yet hold a photographed example of this type.
BrandBendix
ClassGas and Special Tubes
BaseSpecial / none
Construction
Primary TypeOther / special
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialNickel
Absolute Maximum Ratings
Plate Voltage10 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Bridge Circuit | 8 V | — | — | — | — |
Application Notes
Two Type TT-27 tubes are required for installation, mounted with axes at 90 degrees to form a bridge circuit. Measures deviations from vertical reference wholly by electronic means. Sensitivity can be increased by decreasing the tube angle to 60 degrees.
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