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Other (3257), Pre (2314), Power (1030), Rectifier (740)
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50Z7G

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BrandSylvania
ClassRectifier / Voltage Doubler
BaseOctal
Filament50V @ 150mA

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 Doubler117V---65mA
Half-wave Rectifier117V---65mA

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.

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