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Old 5th Feb 2019, 1:12 am   #104
FERNSEH
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Join Date: Mar 2005
Location: Gateshead, Tyne and Wear, UK.
Posts: 6,339
Default Re: Baird T5 restoration project.

Work on making the new cabinet sides will commence later this week.

Earlier this evening the signal generator was connected to the sound receiver unit. The sound receiver is not a superhet as the vision receiver is, but is in fact a TRF, fixed tuned to 41.5mc/s. The receiver down in sensitivity. Supplying the unit with a channel B1 signal direct from the Aurora gives insufficient output from the loudspeaker. According to the oscilloscope the oscillator in the demodulator is operating at 783kc/s.

DFWB.
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