VINTAGE BK SOLID STATE 747 TUBE TESTER

Description

Here for your consideration is One VINTAGE BK SOLID STATE 747 TUBE TESTER. Initially powered up with my variac... The tester works I tested several tubes against my TV 7/U tester with similar results. Cosmetically the unit is complete and in good condition with no broken slides or knobs. The unit my need to be calibrated for optimal output?? I DID NOT check out every function on this unit only the basic tube testing functions.. Please check out the pics and if you have any questions feel free to email me Thanx