HA1
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BrandMarconi
ClassAcorn Triode
Construction
Primary TypeTriode
EnvelopeAcorn
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage250 V
Cathode Current4.5 mA
Audio Performance
Key Features
- Ultra high frequency work
- Reduced size and capacities
- Suitable for valve voltmeter work
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Super regenerative detector | 150V | 2000 | - | 20 | 4.5mA |
Application Notes
As an oscillator the HA1 will operate up to 600 Mc. It is important that the anode current should never exceed 4.5 mA. Soldered connections must not be made to the valve prongs.
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