EL37 Mullard yellow print R62 B Blackburn double getter 6L6G KT66 EL35 CV586 equivalent holy grail
EL37 Mullard code R62 yellow print £ 600 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 old yellow logo circa 1960s they are labeled Made in Great Britain and bear etched code on glass R62 B made at Blackburn.
We offer a set of four pieces EL37 Mullard yellow print 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 96mA, 97mA, 96mA, 96mA 100% emission and mutual conductance of 11
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