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27M12 vacuum tube outline illustration

Tube-number record

27M12

0 archive entries

27M12 is a tube type in the TubeDatabase archive (class: Photomultiplier Tube). Recorded specifications: brand Ediswan, construction Multi-section, socket Flexible / flying leads, and maximum plate voltage 65 V. The archive does not yet hold a photographed example of this type.

BrandEdiswan
ClassPhotomultiplier Tube
BaseFlexible / flying leads

Construction

Primary TypeMulti-section
EnvelopeGlass
Sections9-stage

Filament / Heater

Absolute Maximum Ratings

Plate Voltage65 V
Cathode Current1 mA

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Normal Operation65 V———0.0001 mA

Application Notes

The bleed current in the potentiometer chain should be at least ten times the maximum output current.

Datasheets

Datasheet: 27M12.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
    • Blue sensitive
    • Shock resistant
    • Vibration resistant
    • Aircraft application
    • Flying leads