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Lot · Capacitance & ESR Meters

HeathKit IT-121 Fet/Transistor Tester Working!

HeathKit IT-121 Fet/Transistor Tester Working! Archived listing photo
Starting price (see what it sold for on eBay ↗) $45.00 as of May 24, 2026
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Closed Thu · May 28, 2026
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Ships from ZIP 984**
battlestar 4,923 ratings · 99.00% positive
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Description

From the seller
The Heathkit IT-121 FET/Transistor tester is a quality instrument for quick, accurate test of conventional (bipolar) transistors, diodes, FET's, SCR's, Triacs, and unijunction transistors. Gain (DC Beta) transconductance (Gm), and leakage values are read directly on the large easy to read meter. You can test devices either in-circuit or out of circuit. Also included in auction are three test leads

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