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H63

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BrandMarconi
ClassTriode
BaseOctal
Filament6.3V @ 0.3mA

Construction

Primary TypeTriode
EnvelopeMetallised

Filament / Heater

Absolute Maximum Ratings

Plate Voltage250 V

Audio Performance

Key Features
  • Resistance coupled circuits
  • High amplification factor

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
L.F. amplification250V110091000100-

Application Notes

An anode load of 0.25 megohm is suggested with a bias resistance of 2,000 ohms. The grid leak of the following stage should be .5 meg where such a value is allowable.

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