I put the new component in the Zenith today, and I got perfect HV regulation right off the bat. Put in a new picture tube while I was at it, and the picture it has now is nothing short of amazing. Only thing that needs attention now is the horizontal centering.

Found this while looking for something else,info on VDRs. Here is the link. http://www.americamradiohistory.com/...ng-1971-11.pdf hope this helps. Seems the web not being nice so go go to the ARH site then go to the PF-Porter page and download 1971-11, Electronic-Servicing. All the best, Tom. J

Well i'm going to try that link for the vdr story again.http://www.americanradiohistory.com/...ng-1971-11.pdf. Tom.J