Tube Testers

This Hickok 580A Laboratory Grade Tube Tester and Analyzer, with Three Transformers for Filament, Plate, & Screen, Plus 300 VDC Available, is in Excellent Condition. I used a Test subject (6CL6) to test this unit and it appeared to work as it should...

This Hickok 752A Tube Tester for New and Older Tubes, is in Excellent Condition. This is a very nice tester and is very clean.  Model 752 & 752A are the same except the "A" version has 4 additional tube sockets and 4 more switch positions to...

This Hickok 799 "Mustang" Dynamic Mutual Conductance Tube Tester, is in Excellent Condition.  I am not an expert in Tube Testers but this seems to be a very high quality tester. I did power it up and checked a 5U4 tube and it appears to be working...

This Hickok 799 "Mustang" Dynamic Mutual Conductance Tube Tester, is in good cosmetic Condition with some areas in the case that shows wear.  I am not an expert in Tube Testers but this seems to be a very high quality tester. I did power it up and...

This Hickok 799 "Mustang" Dynamic Mutual Conductance Tube Tester, with the C99 Optional add on deck, is in Excellent Condition.  I am not an expert in Tube Testers but this seems to be a very high quality tester. I did power it up and checked a 5U4...