Re: Ferguson - Thorn 980
Seeing as you've replaced all the carbon resistors, for the width problem, I'd first check the position of the linearity sleeve on the tube neck between the scan coils. It should be pushed in for correct line linearity and NO FURTHER than that or there will be insufficient width and some overheating of the scan coils. Check by substitution the PL81 and PY81 valves and finally, the S correction capacitor. I think it's 0.25uF but experiment with 0.22uF and 0.33uF. Hope that helps.
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All the very best,
Tas
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