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maninashed · 14th Jun 2011, 8:46 am

Hi Victor, first check your crt heater, you will still get a faint trace with the heater out. Also check the cathode eht supply as low eht will give the same problem. Be careful though! I havent got a schematic of the scope but it will be in the region of 3kv.
Bill

14th Jun 2011, 8:46 am	#2
maninashed Rest in Peace Join Date: May 2011 Location: Preston, Lancashire UK Posts: 955	Re: Tektronix 7613 CRT soft Hi Victor, first check your crt heater, you will still get a faint trace with the heater out. Also check the cathode eht supply as low eht will give the same problem. Be careful though! I havent got a schematic of the scope but it will be in the region of 3kv. Bill