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sexton_mallard · 8th Aug 2017, 6:49 pm

I carefully marked the position of the linearity sleeve, magnet and released the scan coils from the tube neck after removing the mounting hardware. No obvious faults could be seen with the wiring or within the coils such as 'green spot' corrosion and so on. The measured resistance is 28 ohms. From the service notes I believe L46 and L47 are the coils and they are 37 ohms each and wired in parallel which works out to be 18.5 ohms.

As a last resort I was thinking of substituting the coils with a dummy load from about 20 ohms to 40 ohms with a resistor and see if the EHT comes up?

8th Aug 2017, 6:49 pm	#59
sexton_mallard Heptode Join Date: Sep 2013 Location: Ellesmere, Shropshire, UK & Co. Cork, Ireland. Posts: 501	Re: Kolster Brandes RV 10 (Crown) I carefully marked the position of the linearity sleeve, magnet and released the scan coils from the tube neck after removing the mounting hardware. No obvious faults could be seen with the wiring or within the coils such as 'green spot' corrosion and so on. The measured resistance is 28 ohms. From the service notes I believe L46 and L47 are the coils and they are 37 ohms each and wired in parallel which works out to be 18.5 ohms. As a last resort I was thinking of substituting the coils with a dummy load from about 20 ohms to 40 ohms with a resistor and see if the EHT comes up? Attached Thumbnails __________________ Dom Less snakes...more ladders!