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Old 9th May 2011, 7:35 am   #6
Heatercathodeshort
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Join Date: Jun 2005
Location: Warnham, West Sussex. 10 miles south of DORKING.
Posts: 9,145
Default Re: Bush TV12 Poor Contrast

Hello again Kevin,
Just another possibility here. Two versions of the TRF unit were produced. One for Sutton Coldfield channel 4 and of course the original Alexandra Palace model, channel 1. Is it posssible you are attempting to align a channel 4 version to channel 1? The AURORA provides a very strong clean signal that will 'blast' through most incorrectly tuned circuits. It was just that you mentioned that by tuning the cores a weak signal began to appear. It is possible to tune the TRF unit to channel 2 the old Holme Moss with little modification but it won't stretch to channel 4. Worth a thought. Regards, John.
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