UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Oh no

Heatercathodeshort · 20th May 2010, 7:37 pm

Hello Dom,
I safe way of adjusting the line drive on any old 405 t.v. is to screw the trimmer in until you get a 'kink' in the centre of the picture. Unscrew until it just disappears and you should be OK. Too little drive will damage the PL81 and may slightly over heat the LOPT. Hope this helps. J.

20th May 2010, 7:37 pm	#87
Heatercathodeshort Dekatron Join Date: Jun 2005 Location: Warnham, West Sussex. 10 miles south of DORKING. Posts: 9,147	Re: Oh no - another V4! Hello Dom, I safe way of adjusting the line drive on any old 405 t.v. is to screw the trimmer in until you get a 'kink' in the centre of the picture. Unscrew until it just disappears and you should be OK. Too little drive will damage the PL81 and may slightly over heat the LOPT. Hope this helps. J.