EL37 Mullard military grade CV586 EL35 KT66 6L6G equivalent double getter brown base code R62

Mullard EL37 CV586 double getter £ 750 quartet

Description

The EL37 audio output valve is one of the classic valves and its predecessor was the Mullard EL35.

Mullard also described the EL37 as suitable for use as drivers for large triode push-pull output stages. The EL37 has a high value of mutual conductance compared with the valves it is sensibly equivalent to. At 11.0 mA/V it is almost twice the value of the KT66 and the 6L6.

Audio Magical is glad to show you all EL37 made back those days

Here we have a quartet of Mullard EL37 for military and public address use labeled CV586 with arrow on glass

Brown base, clean top with code on glass R62 B7 made at Blackburn UK

We offer a set of four pieces all tested with AVO VCM 163

EL37 Mullard has a grid volts of 13.5 with both Anode and Screen set at 250 V and filament 6.3 V then we got current of 97mA, 98mA, 98mA, 97mA 100% emission and mutual conductance of 11

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