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

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18FY6A vacuum tube outline illustration

Tube-number record

18FY6A

0 archive entries

18FY6A is a tube type in the TubeDatabase archive (class: High Mu Duo-Diode Triode). Recorded specifications: brand Sylvania, construction Multi-section, socket Miniature 7-pin (B7G), maximum plate voltage 150 V, and maximum plate dissipation 0.5 W. The archive does not yet hold a photographed example of this type.

BrandSylvania
ClassHigh Mu Duo-Diode Triode
BaseMiniature 7-pin (B7G)
Filament18 V @ 100 mA

Construction

Primary TypeMulti-section
EnvelopeT-5 1/2
Sections3

Filament / Heater

Warm-up Time20s
Heater NotesControlled for heater warm-up time; range 94-106 mA

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A1 Amplifier100 V1300770001000.6 mA

Application Notes

Designed for detector-amplifier applications in AC/DC type radio receivers.

Datasheets

Datasheet: 18FY6A.pdf

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

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    Plate Voltage150 V
    Plate Dissipation0.5 W
    H-C Voltage100 V

    Audio Performance

    Key Features
    • Miniature button 7-pin base
    • Controlled heater warm-up time
    • High mu triode
    • Dual diodes for detection