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

Other (3,257 tube types), Pre (2,314 tube types), Power (1,030 tube types), Rectifier (740 tube types)
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Tube-number record

3CZ3

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BrandRCA
ClassHalf-Wave Vacuum Rectifier
BaseOctal
Filament3.15 V @ 480 mA

Construction

Primary TypeRectifier
Rectifier Typevacuum
EnvelopeJEDEC T9
Base MaterialUltra-Short Small-Wafer
Sections1

Filament / Heater

MaterialCoated Unipotential
Warm-up Time4s
Heater NotesHeater voltage range: 2.65 to 3.65 V

Absolute Maximum Ratings

Plate Voltage30000 V
Cathode Current2.2 mA

Audio Performance

Key Features
  • X-radiation shielding required above 16kV
  • Pulsed rectifier operation
  • External barriers on base
  • Top cap plate connection

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Instantaneous Tube Voltage Drop60 V———7 mA

Application Notes

Specifically designed for operation as a pulsed rectifier tube in 525-line, 30-frame systems.

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