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

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4MP1 vacuum tube outline illustration

Tube-number record

4MP1

0 archive entries

4MP1 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Sylvania, construction Display / CRT, socket Duodecal, maximum plate voltage 6600 V, and maximum plate dissipation 6.6 W. The archive does not yet hold a photographed example of this type.

BrandSylvania
ClassCathode Ray Tube
BaseDuodecal
Filament6.3 V @ 0.6 mA

Construction

Primary TypeDisplay / CRT
EnvelopeSquare Glass
SectionsSingle beam

Filament / Heater

Heater NotesHeater current tolerance +/- 10%

Absolute Maximum Ratings

Plate Voltage6600 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Post Deflection Acceleration4000 V———0.025 mA

Application Notes

The 4MP is designed for optimum performance when operated at an Eb3/Eb2 ratio of 2.0. X-ray radiation shielding may be necessary if operated at higher than rated anode voltage.

Datasheets

Datasheet: 4MP1.pdf

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

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Manufacturers

Brands

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    Plate Dissipation6.6 W
    Grid 2 Voltage3300 V
    Grid 1 Voltage220 V
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Direct Viewed
    • Square Glass Type
    • Spherical Clear Faceplate
    • Electrostatic Focus
    • Electrostatic Deflection
    • Post Deflection Acceleration