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

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WE18 vacuum tube outline illustration

Tube-number record

WE18

0 archive entries

WE18 is a tube type in the TubeDatabase archive (class: Variable-mu AF Pentode with Tuning Indicator). Recorded specifications: brand Philips / Telefunken, construction Display / CRT, socket Side-contact (P-base), maximum plate voltage 300 V, and maximum plate dissipation 0.3 W. The archive does not yet hold a photographed example of this type.

BrandPhilips / Telefunken
ClassVariable-mu AF Pentode with Tuning Indicator
BaseSide-contact (P-base)
Filament6.3 V @ 200 mA

Construction

Primary TypeDisplay / CRT
EnvelopeGlass (Vetro)
SectionsSingle section with indicator

Filament / Heater

Heater NotesIndirect heating

Absolute Maximum Ratings

Plate Voltage300 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
AF Amplifier250 V—800000701 mA

Application Notes

Designed for low-frequency amplification with the ability to control sensitivity via CAV (AGC) without causing cross-modulation distortion in earlier stages. The variable screen voltage is used to drive the tuning indicator deflector rods.

Datasheets

Datasheet: WE18.pdf

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

Filters

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Manufacturers

Brands

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    Plate Dissipation0.3 W
    Grid 2 Voltage300 V
    Grid 1 Voltage-1.3 V
    Cathode Current3 mA
    H-C Voltage100 V

    Audio Performance

    Typical THD1.1%
    Key Features
    • Variable-mu (mu variabile)
    • Cathode ray tuning indicator
    • Quick heating cathode (catodo a riscaldamento rapido)
    • Sliding screen voltage principle (tensione di schermo mobile)