[Popester]

Marshall, most all Sony OEM schematics for CRT televisions refer to this as a high voltage block assy or HV block assy. When I call that a tripler, that would be a more appropriate nomenclature if it was a Zenith. When I buy a tv on eBay I always use a handkerchief damp with water and wrung out and put a drop of dawn dishwashing liquid to clean off the grime that builds up. That HV lead to the picture tube won't bite you if you just clean it with a dampened cloth. As that lead is well insulated. Just make sure it's not plugged in. It does a great job of cleaning. The indextron for its time has a decent image on it.