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4HS8
Voltage Dual Pentode Pentode-PentodeDissimilarCommon cathode
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Base
Refer to variations
Socket code
B9A
Electrical Summary
Heater 4.2 V / 450 mA
Plate S1: 300 V / 1.1 WS2: 300 V / 1.1 W
Screen S1: 150 V / 0.75 WS2: 150 V / 0.75 W
Ik max S1: 12 mAS2: 12 mA
Sections
2
9 pins - B9A - Small-button Noval 9-contact
Twin pentode designed for television AGC, sync-separator, sync-clipper, and noise-gating service.
TV Sync AGC
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Electrical Summary

General Summary

Voltage Dual Pentode Pentode-PentodeDissimilarCommon cathode

Heater	4.2 V / 450 mA
Plate	S1: 300 V / 1.1 WS2: 300 V / 1.1 W
Screen	S1: 150 V / 0.75 WS2: 150 V / 0.75 W
Ik max	S1: 12 mAS2: 12 mA

9 pins - B9A - Small-button Noval 9-contact

Twin pentode designed for television AGC, sync-separator, sync-clipper, and noise-gating service.

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