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

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Tube-number record

50Z7G

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BrandSylvania
ClassRectifier / Voltage Doubler
BaseOctal
Filament50 V @ 150 mA

Construction

Primary TypeHigh vacuum
EnvelopeST-12
Sections2

Filament / Heater

Heater NotesIncludes tap for panel lamp between pins 6 and 7 (2.0 to 2.9V / 170mA).

Absolute Maximum Ratings

Plate Voltage117 V
Cathode Current65 mA

Audio Performance

Key Features
  • High vacuum
  • Panel lamp tap
  • Universal AC/DC receiver use

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Voltage Doubler117 V———65 mA
Half-wave Rectifier117 V———65 mA

Application Notes

Recommended for AC/DC or universal receivers. For half-wave operation, connect plates together and cathodes together. Minimum series resistance of 25 ohms per plate is required.

Datasheets

Datasheet: 50Z7G.pdf

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

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