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

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5651 vacuum tube outline illustration

Tube-number record

5651

0 archive entries

5651 is a tube type in the TubeDatabase archive (class: Voltage reference tube). Recorded specifications: brand Sylvania, construction Other / special, and socket Miniature 7-pin (B7G). The archive does not yet hold a photographed example of this type.

BrandSylvania
ClassVoltage reference tube
BaseMiniature 7-pin (B7G)

Construction

Primary TypeOther / special
Rectifier TypeGlow discharge diode
EnvelopeMiniature
SectionsSingle

Filament / Heater

Absolute Maximum Ratings

Cathode Current3.5 mA

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Voltage Reference87 V———2.5 mA

Application Notes

Intended for use as a voltage reference tube in electronically regulated power supplies. To insure starting throughout tube life, a supply voltage of not less than 115V should be provided.

Datasheets

Datasheet: 5651.pdf

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

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    Audio Performance

    Key Features
    • Miniature cold cathode
    • Gas filled
    • Glow discharge diode
    • Voltage reference