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

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Tube-number record

CCH 2

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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
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

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

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