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EF91 to EF80
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1st Nov 2019, 2:03 pm
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Maarten
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Join Date: Dec 2007
Location: Haarlem, Netherlands
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Re: EF91 to EF80
Philips developed a few B7G triodes for TV tuners (PC97, PC900), though that was only in the second quarter of the 1960's. Before that, they only used noval types.
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