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Forum: The Workshop 29-12-17, 03:29 PM
Replies: 31
Views: 2,091
Posted By listerdiesel
ECC83, EF86, EL84, EL34, they were the Holy Grail...

ECC83, EF86, EL84, EL34, they were the Holy Grail in those days as Mullard had published its valve audio amplifier circuits book in the late 1950's.

PTFE B9A bases were in demand for the EF86 as...
Forum: The Workshop 28-12-17, 12:59 PM
Replies: 31
Views: 2,091
Posted By listerdiesel
When I did my apprenticeship at Mullard in the...

When I did my apprenticeship at Mullard in the early 1960's, we would 'rescue' ultrasonic cleaners out of the scrap bin for the mains transformer and twin EL34 valves that were used in them for the...
Forum: The Workshop 25-12-17, 01:07 PM
Replies: 31
Views: 2,091
Posted By listerdiesel
Very nice! Peter

Very nice!

Peter
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