Does anyone know the settings for 01A or 201/301
tubes on a Hickock tube tester? I have an 800a
tester but settings for other models such as the 600 etc. will work .
Thanks

Set your hickock for a type 12 tube as in the Obsolete chart except set the bias = 44 and english = 44. this will give the correct bad/?/Good dial indication. To read conductance set the english dial to the red dot at 73 and read off the first conductance scale. A new tube should read around 700 to 800 mho or so. Some experts who should know better incorrectly suggest testing these as a type 71 which is a power output tube not a detector / rf amp like the 01a.
01A/UX-201/CX-301 = 5.0 JR 2300-0 44 44 P4 725
Hope this helps - Dick Greyson