Hickok 6000a limitations


I recently came into possession of a Hickok 6000a. It seems to be limited on the types of tubes I can test.It came with the installed scroll. Is there a supplement I can get that would expand the number of tubes I can test?
sbm604

Showing 6 responses by sbm604

Maybe it is just the chart but an example would be the 6S tubes . The only one on the chart is 6SN7. This is also true for the 12S tubes. The only one on the chart is 12SN7.
I just noticed that all the tubes I cannot test are metal tubes. Is there a separate chart or supplement for these types?
Another question I have concerns the conductance reading on the chart. Does it represent the minimum reading or the reading of a new tube. I do not have a manual yet and therefore the confusion.
My home fax is 9082038441. It will not be on until I get home from work today. So it will be on after 7PM. I really appreciate you guys helping me out. It is nice to see people who are enthusiastic about something!(anything)
Thank you, Steve