Tube-number record
171
0 archive entries
171 is a tube type in the TubeDatabase archive (class: Power Triode). Recorded specifications: construction Triode, socket 4-pin, and maximum plate voltage 180 V. The archive does not yet hold a photographed example of this type.
ClassPower Triode
Base4-pin
Construction
Primary TypeTriode
EnvelopeGlass ST-14 or S-14
SectionsSingle
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage180 V
Audio Performance
Power Output0.7 W
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 135 V | 1360 | 2200 | 3 | 15 mA |
| Class A Amplifier (Max) | 180 V | 1500 | 2000 | 3 | 20 mA |
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