I am working on repair of a TLD6612A 2 meter repeater amp that runs a pair of 8560AS tubes. It worked fine for a number of years and then suffered what appeared to be lightning damage.
The insulator between the plate line and the plate tuning disc was arced through among other damage. It is a rectangular piece of clear material that looks like mica. I tried adding some Teflon tape to cover up the puncture. When I fired up the amp today, It arced through again during the tune up process. Anyone have suggestions for a replacement or have one in their junk box? John Lock kf0m at arrl.net

