Thread: Mystery Valve
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Old 3rd Feb 2019, 9:32 pm   #12
G8HQP Dave
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Join Date: Sep 2008
Location: Solihull, West Midlands, UK.
Posts: 4,872
Default Re: Mystery Valve
As Brimar had the 6BR7 (similar applications to EF86) and 6BS7 (same, but with a top cap) maybe Mullard made a few EF86 with top caps?
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