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

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A50-120W vacuum tube outline illustration

Tube-number record

A50-120W

0 archive entries

A50-120W is a tube type in the TubeDatabase archive (class: TV-picture tube). Recorded specifications: brand TELEFUNKEN, construction Display / CRT, base 7-pin special base DIN 44431, socket CRT base (B7 family), and maximum plate voltage 20000 V. The archive does not yet hold a photographed example of this type.

BrandTELEFUNKEN
ClassTV-picture tube
BaseCRT base (B7 family)
Filament6.3 V @ 300 mA

Construction

Primary TypeDisplay / CRT
EnvelopeGrey Glass
Base Material7-pin special base DIN 44431
SectionsSingle

Filament / Heater

Heater NotesControlled warming-up time

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Normal20000 V————

Application Notes

Rectangular TV-picture tube with low-voltage focus. Tube may be used without safety plate due to metal shielding.

Datasheets

Datasheet: A50-120W.pdf

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

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Brands

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    Grid 1 Voltage-150 V
    H-C Voltage250 V

    Audio Performance

    Key Features
    • 110° magnetic deflection
    • Electrostatic focusing
    • Metal-backed screen
    • Grey glass
    • Bonded shield metal armoring