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

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TV 3340B vacuum tube outline illustration

Tube-number record

TV 3340B

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TV 3340B is a tube type in the TubeDatabase archive (class: TR Tube (Crystal Protector)). Recorded specifications: brand THOMSON-CSF, construction Other / special, socket Waveguide, and maximum plate voltage 650 V. The archive does not yet hold a photographed example of this type.

BrandTHOMSON-CSF
ClassTR Tube (Crystal Protector)
BaseWaveguide

Construction

Primary TypeOther / special
EnvelopeMetal/Ceramic
SectionsSingle

Filament / Heater

Absolute Maximum Ratings

Plate Voltage650 V
Cathode Current0.2 mA

Application Notes

The ignitor electrode must be at a negative potential relative to the tube body. Constant current supply is recommended (150 uA). A series resistance of at least 500000 Ohms must be placed near the electrode cap to prevent oscillations. Compatible with TV 19111 mechanical shutter.

Datasheets

Datasheet: TV3340B.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
    • Phase controlled
    • X-band
    • Internal ignitor electrode
    • Protects against high incident energy