Heathkit IT-27 Transistor and Diode Tester w/ 3 test leads, Operation manual.

VINTAGE HEATHKIT ASSEMBLY MANUAL IT-27 TRANSISTOR DIODE CHECKER 1967

Heathkit Transistor Tester model IT-27 ~ UNTESTED, so listing as FOR PARTS . . .

Heathkit IT-27 Transistor-diode checker

Vintage Heathkit Assembly Manual for IT-27 Transistor-Diode Checker, 1967

Heathkit IT-27 Transistor and Diode Checker / Tester With Assembly Manual

Heathkit IT-27 Transistor Tester Leakage Gain PNP NPN Vintage Test Equipment

27 Heathkit Mixed Miscellanous ROMs