555 & 741 Tester

This tester can verify either a 555 Timer or a 741 Op-Amp is functioning by put them in an astable multivibrator circuit before using them in a circuit. This tester also provides split rail power (+v and -V) for testing an op amp circuit you are building on a breadboard. Ordering is very easy, the step by step notifications are very nice to see, and shipping via DHL is smooth. The board were fabricated in less than 24 hours. I am thrilled with PCBWay for the professionalism by the staff and the high quality of the PCBs they produce. I will continue to be a customer of them.

Jun 20,2024
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