Tube-number record
A.C. MAINS TRIODE
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BrandMazda
ClassTriode
Base5-pin
Filament4 V @ 1000 mA
Construction
Primary TypeIndirectly heated
EnvelopeMetallised
Base MaterialStandard 5-pin
SectionsSingle
Filament / Heater
Heater NotesA.C. Mains
Absolute Maximum Ratings
Plate Voltage200 V
Audio Performance
Key Features
- Metallised bulb
- High operating mutual conductance
- Low impedance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| General Operating Point | 100 V | 6500 | 1500 | 75 | — |
| Amplifier (Typical) | 150 V | — | — | — | — |
| Anode-bend Detector | 200 V | — | — | — | — |
Application Notes
Suitable for use as an anode-bend detector. May be used as a low-frequency amplifier with transformer, choke, or resistance-capacity coupling. With resistance coupling, an anode coupling resistance of 50,000-100,000 ohms is satisfactory.
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