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

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Tube-number record

12AY7

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Equivalent and related tube numbers

Commonly cross-referenced designations for 12AY7. Compatibility is not guaranteed. Before substituting, verify socket and pinout, heater voltage and current, bias requirements, and maximum ratings against the relevant manufacturers’ datasheets.

  • 6072
BrandGeneral Electric
ClassTwin Triode
BaseNoval (B9A)
Filament12.6 V @ 150 mA

Construction

Primary TypeTriode
EnvelopeT-6 1/2 Glass
SectionsTwin

Datasheets

Datasheet: 12AY7.pdf

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

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    Filament / Heater

    Heater NotesSeries/Parallel connection available

    Absolute Maximum Ratings

    Plate Voltage300 V
    Plate Dissipation1.5 W
    Cathode Current10 mA
    H-C Voltage90 V

    Audio Performance

    Typical THD5%
    Key Features
    • Low noise
    • Low microphonic output
    • Controlled hiss and hum

    Typical Operation

    ModePlate VGm (µmhos)Rp (Ω)µPlate mA
    Class A Amplifier250 V175025000443 mA
    Low-Level-Amplifier Service150 V————

    Application Notes

    Designed primarily for use in low-level stages of high-gain audio-frequency amplifiers.