HL.23DD
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BrandEdiswan (Mazda)
ClassBattery Economy Double Diode Triode
BaseBritish Octal
Construction
Primary TypeDouble Diode Triode
EnvelopeSmall dimensions, metallised
Sections3
Filament / Heater
Absolute Maximum Ratings
Plate Voltage150 V
Audio Performance
Key Features
- Battery economy
- Low filament consumption
- Metallised bulb
- Independent diodes
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Characteristics | 100V | 1200 | 21000 | 25 | - |
| Typical Operation 1 | 120V | - | - | - | 0.6mA |
| Typical Operation 2 | 120V | - | - | - | 0.5mA |
Application Notes
The HL.23DD is recommended for detection, automatic volume control and audio frequency amplification. Diode load resistance should not be less than 0.5 megohm.
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