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

Heatercathodeshort · 27th Jan 2013, 7:36 pm

The crackle effect is a conductive graphite coating that forms the EHT smoothing. Don't worry about it's condition, it will have very little effect, if any on the final picture even if badly flaking. DON'T clean it! The tube is probably the original with some emission. Hold your breath. John.

27th Jan 2013, 7:36 pm	#63
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: My Bush tv43 restoration The crackle effect is a conductive graphite coating that forms the EHT smoothing. Don't worry about it's condition, it will have very little effect, if any on the final picture even if badly flaking. DON'T clean it! The tube is probably the original with some emission. Hold your breath. John.