EL33

1 Tube in archive

BrandMullard

ClassOutput Pentode

BaseOctal

Filament6.3V @ 0.9mA

Primary TypePentode

EnvelopeGlass

SectionsSingle

Heater NotesA.C. mains-operated equipment

Plate Voltage250 V

Plate Dissipation9 W

Grid 2 Voltage275 V

Grid 1 Voltage-1.3 V

Cathode Current55 mA

H-C Voltage50 V

Typical THD10%

Power Output4 W

Key Features

Mode	Plate V	Gm (µmhos)	Rp (Ω)	µ	Plate mA
Class A Amplifier	250V	9000	50000	23	36mA
Push-Pull (Two Valves)	250V	-	-	-	48mA

High-sensitivity output pentode for use in A.C. mains-operated equipment.

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