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

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17R-HH2 vacuum tube outline illustration

Tube-number record

17R-HH2

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17R-HH2 is a tube type in the TubeDatabase archive (class: Medium-Mu Twin Triode). Recorded specifications: construction Dual triode, socket Noval (B9A), maximum plate voltage 150 V, and maximum plate dissipation 2 W. The archive does not yet hold a photographed example of this type.

ClassMedium-Mu Twin Triode
BaseNoval (B9A)
Filament17 V @ 150 mA

Construction

Primary TypeDual triode
EnvelopeGlass
Sections2

Filament / Heater

Heater NotesDesigned for transformer-less FM/AM receivers

Absolute Maximum Ratings

Plate Voltage150 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
RF Amplifier90 V8000—368.5 mA

Application Notes

Used in tuners of transformer-less FM/AM receivers; most suitable for transformer-less radio receivers due to high transconductance at low plate voltage.

Datasheets

Datasheet: 17R-HH2.pdf

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

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    Plate Dissipation2 W
    Cathode Current20 mA
    H-C Voltage200 V

    Audio Performance

    Key Features
    • High mutual conductance
    • Low plate voltage operation
    • Designed for VHF band
    • Frequency converter
    • Oscillator