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peter_scott · 26th May 2017, 8:19 am

Are you sure that your wobble is due to stray magnetic fields? The 50 Hz mains in the UK is not locked to the 405 line frame rate but we don't see a wobble. It would be worth checking the ripple voltage on your HT lines, especially in the sync unit.

Peter

26th May 2017, 8:19 am	#72
peter_scott Dekatron Join Date: May 2003 Location: Edinburgh, UK. Posts: 3,274	Re: Marconi 702 advice Are you sure that your wobble is due to stray magnetic fields? The 50 Hz mains in the UK is not locked to the 405 line frame rate but we don't see a wobble. It would be worth checking the ripple voltage on your HT lines, especially in the sync unit. Peter __________________ http://www.nostalgiatech.co.uk https://www.youtube.com/c/PeterScott/videos