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

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Tube-number record

CK7994

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BrandRAYTHEON
ClassSUBMINIATURE TRIODE
BaseSubminiature
Filament6.3 V @ 300 mA

Construction

Primary TypeTriode
EnvelopeT3 Glass
Base MaterialGlass
Sections1

Filament / Heater

Heater NotesHeater-cathode type

Absolute Maximum Ratings

Plate Voltage200 V
Plate Dissipation2 W
Cathode Current30 mA
H-C Voltage100 V

Audio Performance

Key Features
  • Low noise
  • Low interelectrode capacitances
  • High transconductance
  • Flexible terminal leads
  • Wide band amplifier stages
  • Grounded-grid operation

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A Amplifier100 V1800025004315 mA

Application Notes

The useful frequency range extends from low to very high frequencies. The flexible terminal leads may be soldered, or welded directly to the terminals of circuit components without the use of sockets.

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