I have a Fisher X-100C with 7868 power tubes and also have a TV-7 tester.

Tubes Asylum

Questions about tubes and gear that glows. FAQ

The TV-7B/U tester does not have a socket for the 7868 tube, so I purchased a 7868 to octal adapter. I then realized that the TV-7 tester manual does not have test data for the 7868 tube.

Being a total tube novice, could someone come up with a solution?

Thanks in advance. Bill.

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The Cable Cooker

Topic - I have a Fisher X-100C with 7868 power tubes and also have a TV-7 tester. - alaskahiatt 23:09:05 05/17/23 (4)

My RCA tube books are all packed up, but further internet searches seem - alaskahiatt 00:26:59 05/18/23 (3)

RE: My RCA tube books are all packed up, but further internet searches seem - Jim McShane 12:51:46 05/21/23 (1)

Thank you, thank you, thank you. nt - alaskahiatt 15:07:08 05/21/23 (0)

That appears to be the case (nt) - Chip647 06:21:36 05/18/23 (0)

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