Fnirsi DPS-150 Programmable Mini Power Supply Review and Teardown
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FNIRSI DPS-150 Programmable Mini Portable DC Power Supply Test And Review
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FNIRSI LCR-P1 Component Tester Review/Teardown, Compared to the LCR-T4
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HP 66312A Power Supply Troubleshoot, Repair, And Calibrate
51:30
Another cheap scope: $18, shipped! (FNIRSI DSO152)
13:52
This 1000 Watt Voltage Converter Blew Up in the first 5 minutes! SH-PWS33 1kw DC-DC 50A Review
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Lithium Ion Super Capacitors
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How Buck, Boost & Buck-Boost DC-DC Converters Work
10:48