Tube-number record
AC/HL
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BrandEdiswan / Mazda
ClassTriode
Base5-pin
Filament4 V @ 1000 mA
Construction
Primary TypeTriode
EnvelopeBulb
SectionsSingle
Filament / Heater
Heater NotesIndirectly-heated
Absolute Maximum Ratings
Plate Voltage200 V
Cathode Current12 mA
Audio Performance
Key Features
- Indirectly-heated
- High amplification factor
- Low anode A.C. resistance
- Cumulative-grid detector
- Power-grid detector
- Anode-bend detector
- L.F. amplifier
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rating Point | 100 V | 3000 | 11700 | 35 | — |
| Amplifier | 100 V | — | — | — | — |
| Amplifier | 150 V | — | — | — | — |
| Amplifier | 200 V | — | — | — | — |
Application Notes
Suitable for use in any position in the set with the exception of the output stage. Available with clear or metallised bulb. For cumulative-grid detection, a 0.0001 to 0.0002 µF condenser with 1 to 2 Megohm leak is recommended.
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