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Old 1st Dec 2017, 10:26 am   #27
Heatercathodeshort
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Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 9,145
Default Re: Vintage Television Technology.

The ECL80 one of the first Mullard/Philips B9A 'World Series' was employed as a frequency changer in the first Pye superhet series FV1 35/38.5 IF. This was a high gain receiver in it's time. [1951] John.
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