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

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ESU106 vacuum tube outline illustration

Tube-number record

ESU106

0 archive entries

ESU106 is a tube type in the TubeDatabase archive (class: Half-wave Mercury Vapour Rectifier). Recorded specifications: brand EDISWAN, construction Mercury Vapour, socket Special / none, and maximum plate voltage 20000 V. The archive does not yet hold a photographed example of this type.

BrandEDISWAN
ClassHalf-wave Mercury Vapour Rectifier
BaseSpecial / none
Filament4 V @ 14000 mA

Construction

Primary TypeMercury Vapour
Rectifier TypeHalf-wave
EnvelopeGlass
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated; cathode heating delay time 5 minutes

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Condensed Mercury Temp 70°C5000 V———7500 mA
Condensed Mercury Temp 65°C10000 V———5000 mA
Condensed Mercury Temp 60°C15000 V———

Application Notes

The cathode should be allowed an adequate heating time (min 5 mins at 15°C; 10 mins at 10°C; 20 mins at 5°C). After transportation or storage, an initial 30-minute cathode heating time is required to ensure correct mercury distribution.

Datasheets

Datasheet: ESU106.pdf

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

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    Plate Voltage20000 V
    Cathode Current3000 mA

    Audio Performance

    Key Features
    • Indirectly heated
    • Half-wave Mercury Vapour Rectifier
    • High Peak Inverse Voltage
    • Condensed mercury temperature range +25°C to +70°C
    4000 mA
    Condensed Mercury Temp 25-55°C20000 V———3000 mA