Tube tester?

Charleston SC

Description

Looking for a good working mutual conductance tube tester to test some old guitar amp tubes. Mainly 12AX7 and power tubes like the 6V6. Ideally recently calibrated with instructions available. May be willing to purchase if you are selling. Or willing to pay a reasonable fee to use it to test a box of tubes. If you have one available or can refer me to someone who does would be great. Thanks!