Products > Test Equipment
T7 Tester
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slybunda:
Ordered this T7 tester from aliexpress and it arrived today. Working great so cant argue for the price of £10 inc post.
Iv took some pics of the insides incase people are interested in how it runs. The main chip is unmarked. 300mah battery which uses jst xh connector and silicone wires which i think are either 22awg or 24awg.
Firmware version it runs is 3.12k
Good addition to my toolkit, surprised i went without this for so long.
Anything i should be careful of or to lookout for when using this? Making sure caps are discharged prior to testing is all i know really.
bffargo:
See the primary 360 page thread regarding these testers: https://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/9000/
madires:
The MCU is most likely an LGT8F328. It's possible that your tester lacks the self-adjument feature. And some measurements are sub-par because of the different MCU and a poorly adapted firmware.
evmillan:
Please could you provide a link to a product that is well implemented and built with the recommended components?

It is difficult to find the proper one when searches turn up over 50 products with similar features in AliExpress
madires:
Unfortunately I can't. It's a lottery at the moment. The best bet is to look for a tester with DIP ATmega328 or to build a Transistortester yourself.
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