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Heatercathodeshort · 16th Apr 2019, 8:24 am

Thick nicotine treacle like deposits were a very common cause of destroyed vacuum in CRTs especially the Thorn models such as the 3000/8500 that had the tube mounted upside down. The classic tracking line that Dave mentions from the EHT connector to the dag was always a bad sign. John.

16th Apr 2019, 8:24 am	#57
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: Pye V4 Thick nicotine treacle like deposits were a very common cause of destroyed vacuum in CRTs especially the Thorn models such as the 3000/8500 that had the tube mounted upside down. The classic tracking line that Dave mentions from the EHT connector to the dag was always a bad sign. John.