Dem,
Follow this link and scroll down to Hickok 6000, download the PDF format owners book and tube guide and print it out for free.
This should solve your problem.
http://www.0wned.org/~hstraub/testerdata.htm
Follow this link and scroll down to Hickok 6000, download the PDF format owners book and tube guide and print it out for free.
This should solve your problem.
http://www.0wned.org/~hstraub/testerdata.htm