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Other (7066), Pre (189), Power (67), Rectifier (19)
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FW4-500

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BrandMullard
ClassFull Wave Rectifier
Base4-pin base

Construction

Primary TypeDirectly-heated power rectifier
Rectifier TypeFull Wave
Sections2

Filament / Heater

Absolute Maximum Ratings

Plate Voltage500 V
Cathode Current250 mA

Audio Performance

Key Features
  • Directly-heated

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
2x500V operation500V----
2x350V operation350V----

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