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

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CCH 2 vacuum tube outline illustration

Tube-number record

CCH 2

0 archive entries

CCH 2 is a tube type in the TubeDatabase archive (class: Triode-Heptode Frequency Converter). Recorded specifications: brand Philips Miniwatt, year 1938, construction Multi-section, socket Side-contact (P-base), maximum plate voltage 300 V, and maximum plate dissipation 1 W. The archive does not yet hold a photographed example of this type.

BrandPhilips Miniwatt
ClassTriode-Heptode Frequency Converter
BaseSide-contact (P-base)
Filament29 V @ 0.2 mA

Construction

Primary TypeMulti-section
EnvelopeGlass
Sections2

Filament / Heater

Heater NotesSeries filament supply; D.C. or A.C.

Absolute Maximum Ratings

Plate Voltage300 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Heptode section as frequency converter200 V7501500000—3.25 mA
Triode section as oscillator100 V5500—17.59.5 mA

Filters

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Manufacturers

Brands

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    Plate Dissipation1 W
    Grid 2 Voltage125 V
    Grid 1 Voltage-1.3 V
    Cathode Current25 mA
    H-C Voltage100 V

    Audio Performance

    Key Features
    • Indirectly heated
    • Multi-unit tube
    • Controlled transconductance