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If you want to test later TV tubes, get either a Sencore "mighty mite" or one of the many B&K tube testers in the 600 or 700 series. These will test the later TV tubes, as well as older octal, loktal, and miniature radio and amplifier tubes. Also, these testers have a "grid emission" test; which, is very important for testing TV tubes. These testers were made right up to the end of tube TV production and between one of these and your TV-7, you should be able to test most any tube used in consumer electronics.
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