IT-18 Transistor Tester ‎MPN 309410-001 -- Untested/Parts & Repair

Vintage Heathkit IT-121 FET / Transistor Tester

24 feet of 1950's - CLOTH COVERED WIRE -for tube/guitar amplifiers, 8 pcs. of 3'

VINTAGE Heathkit Transistor Checker Kit Model IT-18 Tester With Box /Tested

Vintage Heathkit IT-18 Transistor Tester, Circa 1968-1976, Tested and Working

Vintage AEC TT-22 Semiconducter Test Set

Micronta 22-024 Transistor Tester From Radio Shack - Vintage - Made in Japan NOS

Vintage Heathkit Transistor Checker Kit Model IT-18 Tester