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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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8CG7 vacuum tube outline illustration

Tube-number record

8CG7

0 archive entries

8CG7 is a tube type in the TubeDatabase archive (class: Double Triode). Recorded specifications: brand Tung-Sol, year 1956, construction Dual triode, socket Noval (B9A), maximum plate voltage 300 V, and maximum plate dissipation 3.5 W. The archive does not yet hold a photographed example of this type.

BrandTung-Sol
ClassDouble Triode
BaseNoval (B9A)
Filament8.4 V @ 450 mA

Construction

Primary TypeDual triode
EnvelopeGlass Bulb
Sections2

Filament / Heater

Warm-up Time11s
Heater NotesAC OR DC

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A1 Amplifier90 V300067002010 mA
Class A1 Amplifier250 V26007700209 mA

Application Notes

Intended particularly for use as a vertical deflection oscillator and horizontal deflection oscillator in television receivers. It may also be used as a phase inverter, multivibrator, synchronizing separator and amplifier, and resistance coupled amplifier.

Filters

0 tubes found

Manufacturers

Brands

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    Plate Voltage
    300 V
    Plate Dissipation3.5 W
    Cathode Current20 mA
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Medium-mu twin triode
    • 9-pin miniature construction
    • Heater warmup time controlled for series string operation
    • Coated unipotential cathode