UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

FERNSEH · 3rd Oct 2015, 6:19 pm

I'm certain now that the scan coils are not faulty. I've hooked a another scan assembly, albeit not Ferguson, and when those coils are connected into the line circuit it's the same effect, the EHT dies.

In these line timebase circuits the stored energy in the scan coils is at the time of flyback contributes the first part of the scan. It could be possible that another component is breaking on account of the extra energy from scan cols.

DFWB.

3rd Oct 2015, 6:19 pm	#26
FERNSEH Dekatron Join Date: Mar 2005 Location: Gateshead, Tyne and Wear, UK. Posts: 7,444	Re: Ferguson 247T: huge console TV set. I'm certain now that the scan coils are *not* faulty. I've hooked a another scan assembly, albeit not Ferguson, and when those coils are connected into the line circuit it's the same effect, the EHT dies. In these line timebase circuits the stored energy in the scan coils is at the time of flyback contributes the first part of the scan. It could be possible that another component is breaking on account of the extra energy from scan cols. DFWB.