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

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12BZ7 vacuum tube outline illustration

Tube-number record

12BZ7

10 archive entries

12BZ7 is a tube type in the TubeDatabase archive (class: High-Mu Twin Triode). Recorded specifications: brand Sylvania, construction Dual triode, socket Noval (B9A), maximum plate voltage 300 V, and maximum plate dissipation 1.5 W. The archive holds 10 photographed examples of this type.

BrandSylvania
ClassHigh-Mu Twin Triode
BaseNoval (B9A)
Filament12.6 V @ 300 mA

Construction

Primary TypeDual triode
EnvelopeT-6 1/2
Sections2

Filament / Heater

Heater NotesSeries/Parallel

Absolute Maximum Ratings

Plate Voltage300 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A Amplifier - Each Section250 V3200318001002.5 mA

Application Notes

Designed primarily for use as a sync separator and sync amplifier in television receivers. Also useful in clipping circuits and as a general purpose audio amplifier.

Datasheets

Datasheet: 12BZ7.pdf

Download PDF
Loading datasheet...

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

Filters

10 tubes found

Manufacturers

Raytheon1

Brands

Plate Dissipation1.5 W
Grid 1 Voltage-50 V
H-C Voltage180 V

Audio Performance

Key Features
  • High-mu
  • Miniature
  • Twin triode
  • Coated Unipotential Cathode
Cbs
2
RCA2
CEI1
Gold Aero1
Hytron1
Marconi Radiotron1
Sci-Fi1
Sylvania1
Tung-Sol1
Westinghouse1
  • CEI 12BZ7 tube - Raytheon

    12BZ7

    Maker
    Raytheon
    Brand
    CEI
  • RCA 12BZ7 tube

    12BZ7

    Brand
    RCA
  • Cbs, Hytron 12BZ7 tube — photo 1 of 2
    Cbs, Hytron 12BZ7 tube — photo 2 of 2

    Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.

    Photo 1 of 2

    12BZ7

    Brand
    Cbs, Hytron
  • Gold Aero, Sci-Fi 12BZ7 tube — photo 1 of 4
    Gold Aero, Sci-Fi 12BZ7 tube — photo 2 of 4
    Gold Aero, Sci-Fi 12BZ7 tube — photo 3 of 4
    Gold Aero, Sci-Fi 12BZ7 tube — photo 4 of 4

    Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.

    Photo 1 of 4

    12BZ7

    Brand
    Gold Aero,
  • Westinghouse 12BZ7 tube

    12BZ7

    Brand
    Westinghouse
  • Marconi Radiotron 12BZ7 tube — photo 1 of 2
    Marconi Radiotron 12BZ7 tube — photo 2 of 2

    Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.

    Photo 1 of 2

    12BZ7

    Brand
    Marconi Radiotron
  • RCA 12BZ7 tube — photo 1 of 3
    RCA 12BZ7 tube — photo 2 of 3
    RCA 12BZ7 tube — photo 3 of 3

    Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.

    Photo 1 of 3

    12BZ7

    Brand
    RCA
  • Cbs 12BZ7 tube

    12BZ7

    Brand
    Cbs
  • Sylvania 12BZ7 tube — photo 1 of 2
    Sylvania 12BZ7 tube — photo 2 of 2

    Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.

    Photo 1 of 2

    12BZ7

    Brand
    Sylvania
  • Tung-Sol 12BZ7 tube — photo 1 of 4
    Tung-Sol 12BZ7 tube — photo 2 of 4
    Tung-Sol 12BZ7 tube — photo 3 of 4
    Tung-Sol 12BZ7 tube — photo 4 of 4

    Use the Left and Right Arrow keys to browse photos. Use Home for the first photo and End for the last photo.

    Photo 1 of 4

    12BZ7

    Brand
    Tung-Sol
Showing 1–10 of 10 results
Sci-Fi