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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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Tube-number record

8456

0 archive entries

8456 is a tube type in the TubeDatabase archive (class: Medium-Mu Triode). Recorded specifications: brand RCA, year 1964, construction Triode, base Ceramic, socket Subminiature, maximum plate voltage 50 V, and maximum plate dissipation 0.45 W. The archive does not yet hold a photographed example of this type.

BrandRCA
ClassMedium-Mu Triode
BaseSubminiature
Filament6 V @ — mA

Construction

Primary TypeTriode
EnvelopeMetal Shell MT4
Base MaterialCeramic
SectionsSingle

Filament / Heater

Heater NotesDesigned to operate within +/- 10% of any specified center voltage between 6.0 and 8.5V for battery supplies.

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A Amplifier (Cathode Bias)24 V7500153011.58.7 mA
Class A Amplifier (Fixed Bias)12 V80001600125 mA
Class A Amplifier (Fixed Bias) @ 24V24 V8000150012

Application Notes

Specifically designed for sonobuoy and other expendable equipment requiring operation from battery supplies.

Filters

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Manufacturers

Brands

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    Plate Voltage50 V
    Plate Dissipation0.45 W
    Grid 1 Voltage-55 V
    Cathode Current15 mA
    H-C Voltage100 V

    Audio Performance

    Key Features
    • Nuvistor
    • Low Voltage Operation
    • Expendable Equipment Use
    • Sonobuoy Application
    • Metal Shell
    9.5 mA