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paulsherwin · 19th Nov 2017, 11:43 pm

By the late 60s valves could come from anywhere, regardlesss of the branding. Mullard generally just remarked valves from within the Philips group, but other manufacturers sourced them from all over the place.

19th Nov 2017, 11:43 pm	#4
paulsherwin Moderator Join Date: Jun 2003 Location: Oxford, UK Posts: 27,943	Re: "Foreign" marked B9A valves By the late 60s valves could come from anywhere, regardlesss of the branding. Mullard generally just remarked valves from within the Philips group, but other manufacturers sourced them from all over the place.