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Old 26th Jun 2019, 10:01 am   #168
FERNSEH's Avatar
Join Date: Mar 2005
Location: Gateshead, Tyne and Wear, UK.
Posts: 6,397
Default Re: Baird T5 restoration project.

It's evident some wee beastie has chewed the top of the line output transformer but I don't think all is lost because the damage is only the outer turns on what turns out to be the sync injection winding. See the attached circuit diagram.
The transformer has been removed from the chassis for inspection.
The primary is the inner winding, the secondary serves as the oscillator feedback winding and supplied the scanning coils.
The capacitors have been tested and all are useless. All the electrolytic capacitors are of TMC make and were fitted in 1947.

All the other chassis assemblies are working and just need the capacitors replacing or in the case of the waxies - restuffing. Most of the resistors are close to the indicated values.

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