VARIABLE-MU H.F. PENTODE
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BrandEdiswan Radio (Mazda)
ClassA.C./D.C. Mains H.F. Pentode
BaseBritish Octal
Filament13V @ 0.2mA
Construction
Primary TypePentode
EnvelopeMetallised bulb
SectionsSingle
Filament / Heater
Heater NotesA.C./D.C. Mains operation
Absolute Maximum Ratings
Plate Voltage200 V
Grid 2 Voltage200 V
Audio Performance
Key Features
- Variable-mu
- Metallised
- Small dimensions
- High mutual conductance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation 1 | 50V | 2350 | 800000 | - | 7.2mA |
| Typical Operation 2 | 165V | 2100 | 700000 | - | 8mA |
| Typical Operation 3 | 175V | 2000 | 800000 | - | 8mA |
| Typical Operation 4 | 175V | 2000 | 800000 | - | 8.5mA |
Application Notes
Specifically designed for operation in A.C./D.C. receivers employing the loud speaker field winding for smoothing. Recommended for use in super-heterodyne receivers with a Mazda TH.2321 converter.
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