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

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Tube-number record

AC/DC MAINS HALF WAVE RECTIFIER

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BrandMazda
ClassRectifier
BaseOctal
Filament40 V @ 200 mA

Construction

Primary TypeIndirectly heated
Rectifier TypeHalf Wave
EnvelopeMetallised Bulb
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated

Absolute Maximum Ratings

Plate Voltage250 V
Cathode Current120 mA

Audio Performance

Key Features
  • Metallised bulb
  • Indirectly heated
  • Mazda Octal Base

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical Operation (200V Input)200 V———90 mA
Typical Operation (230V Input)230 V———90 mA
Typical Operation (200V Input, Max Current)200 V———

Application Notes

To safeguard the valve from large current surges, a 50-ohm resistance must be used in series with the anode. The reservoir capacity should not exceed 16 uF. The metal coating should be connected to the chassis.

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    120 mA
    Typical Operation (230V Input, Max Current)230 V———120 mA