[tab10672]

If you can't find a chart let me know, I hardly ever use this tester and have to track down the book (I have it somewhere) but I could scan it and email a copy to you. I have never had a tube that wasn't in either the book or the roll chart. I also have a loose roll chart I can scan. Keep in mind these are just emissions testers (go/no go) that will show a good tube but when under load the tube may show problems not found by the tester, after a few times of thinking the tubes were good and the radio still wouldn't work because of the knight I bought a Hickok.