I have a Heathkit tube tester and can someone give me the setting to test this tube?

what is your model number of tube tester .

Model tc-2

its not on my tc-2 chart ,unless there is a updated chart at one of the heathkit websites ,the tube might be newer than the tester.

On thing you might try is looking in the Heath guide for a "DE&" tube with a differnt first number (filament). The first thing Id try is 6DE7. the settings should be the same except for filament voltage, which should work at 12 volts if the testerdoes not have a 13 volt setting.

On thing you might try is looking in the Heath guide for a "DE7" tube with a differnt first number (filament). The first thing Id try is 6DE7. the settings should be the same except for filament voltage, which should work at 12 volts if the testerdoes not have a 13 volt setting.