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Tube Database (7,341 tube types · 1,270 archive entries)

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Tube-number record

A.C. MAINS TRIODE

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A.C. MAINS TRIODE is a tube type in the TubeDatabase archive (class: Triode). Recorded specifications: brand Mazda, construction Indirectly heated, base Standard 5-pin, socket 5-pin, and maximum plate voltage 200 V. The archive does not yet hold a photographed example of this type.

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

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
General Operating Point100 V6500150075—
Amplifier (Typical)150 V————
Anode-bend Detector200 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.

Filters

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Manufacturers

Brands

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    Plate Voltage200 V

    Audio Performance

    Key Features
    • Metallised bulb
    • High operating mutual conductance
    • Low impedance