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Old 8th Jan 2016, 10:02 am   #25
FERNSEH's Avatar
Join Date: Mar 2005
Location: Gateshead, Tyne and Wear, UK.
Posts: 7,020
Default Re: PYE TT1 - First Transistor Portable UK TV

As two line output transistors are employed in the TT1 the AU113 ratings will be more than necessary for the job. The -70 volt flyback pulse at the collector of the "upper" line output transistor V35 is distributed across both transistors.
The flyback tuning capacitor C97 has the remarkably high value of 0.17microfarads.

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