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Old 8th Jan 2016, 10:02 am   #25
FERNSEH
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Join Date: Mar 2005
Location: Gateshead, Tyne and Wear, UK.
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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.

DFWB.
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