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

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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DCH 22 vacuum tube outline illustration

Tube-number record

DCH 22

0 archive entries

DCH 22 is a tube type in the TubeDatabase archive (class: Triode-Hexode frequency converter). Recorded specifications: brand Philips, year 1941, construction Multi-section, socket Side-contact (P-base), maximum plate voltage 135 V, and maximum plate dissipation 0.3 W. The archive does not yet hold a photographed example of this type.

BrandPhilips
ClassTriode-Hexode frequency converter
BaseSide-contact (P-base)

Construction

Primary TypeMulti-section
EnvelopeGlass
Sections2

Filament / Heater

Absolute Maximum Ratings

Plate Voltage135 V
Plate Dissipation0.3 W

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Hexode Mixer (Fixed Screen Grid)90 V2501000000—0.75 mA
Hexode Mixer (Fixed Screen Grid)120 V2601300000—1 mA
Triode Section60 V1300——1.3 mA

Application Notes

Heater current must be adjusted to 100 mA when filaments are connected in series.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Grid 2 Voltage115 V
    Grid 1 Voltage-0.2 V
    Cathode Current6 mA

    Audio Performance

    Key Features
    • Direct heating
    • Battery operation
    • Frequency converter for superheterodyne receivers