I have a Hickok 605A and here’s my chart. The European E88CC etc are listed. Just need to compare your 12ax7, 12au7 … to the ones on my chart to see if it uses the same settings.
https://pdf4pro.com/cdn/consolidated-test-data-for-hickok-model-533a-e3309.pdf
Hickok 750 Tube Tester US vs. European Settings
I have a Hickok 750 tester. Do you know if I can use the same settings for all of the US and European 6DJ8 variants?
I have the whole gamut; 6922 7308, CCa, E88CC Ecc88, E188CC.
Same question for the 12A*7 variants.
Thx.