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Originally Posted by Heatercathodeshort
Hello Daz, The original high voltage ceramic failed when the 2210 was almost new. The mod involved using a much high value cap around 350pf and connecting it across two lower potential points on the LOPT tag strip. It's a long shot but I will dig out my original 2210 manual and see if I tucked the mod sheet in it. The other possibility is that it was published in the Murphy Service News. I will have a go! John.
Found it! The original capacitor 3C34 180pf is removed from tags 3 & 10 of the LOPT. The replacement 340pf is connected between pins 8 & 10. Information taken from Murphy service manuals TP1723 and TP1729-1 1-10-70. Hope this helps.
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Thank you John. I will check whether my set has already been modified.