Tube-number record
H.L.A.2
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H.L.A.2 is a tube type in the TubeDatabase archive (class: Triode). Recorded specifications: brand Brimar, construction Triode, socket 5-pin, and maximum plate voltage 200 V. The archive does not yet hold a photographed example of this type.
BrandBrimar
ClassTriode
Base5-pin
Filament4 V @ 1000 mA
Construction
Primary TypeTriode
EnvelopeGlass
Sections1
Filament / Heater
Heater Notes4 volts +/- 5%
Absolute Maximum Ratings
Plate Voltage200 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| L.F. Amplifier | 100 V | — | — | — | 3 mA |
| L.F. Amplifier | 150 V | — | — | — | 5 mA |
| L.F. Amplifier | 200 V | — | — | — | 6 mA |
Application Notes
Can be used as a detector, low frequency amplifier, or oscillator in superheterodynes. For L.F. amplifier, automatic bias may be obtained by a resistance of approximately 400 ohms in the cathode lead.
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