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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

72

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BrandRaytheon Manufacturing Co.
ClassHigh Vacuum Rectifier
Base4-pin

Construction

Primary TypeRectifier
Rectifier TypeHigh Vacuum
Envelope7-1/2
Base MaterialBakelite

Filament / Heater

MaterialThoriated Tungsten
Warm-up Time2s

Absolute Maximum Ratings

Cathode Current20 mA

Audio Performance

Key Features
  • Thoriated Tungsten Filament
  • Convection Cooling
  • Bayonet 4-prong Medium Bakelite Base

Application Notes

The value of Maximum Peak Inverse Voltage is limited for tube use in hermetically-sealed units that are dry and free from dust.

Datasheets

Datasheet: 72.pdf

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Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

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