Mullard 5-10
To promote their new 9-pin tubes EZ80, EF86 and EL84, the Anglo-Dutch Mullard Company developed, in 1954, a famous and very popular mono amplifier circuit, the Mullard 5-10. The design featured 5 tubes with 10 watts output: EF86 as preamplifier, ECC83 phase-splitting, two EL84 in push-pull configuration, EZ80 rectifier. The amplifier used the excellent Partridge output transformer and was well known for its great sound reproduction.
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