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Тестер для 555 таймера - 555 Timer Tester06:32
QC 3.0-2.0 USB Fast Quick Charging Module DIY Charge Board Car-Boat-Solar-Battery Phone Charger37:13
Review of a constant voltage constant current programmable control power supply module17:00
Free energy generator homemade 220v attached to bicycle.DIY free electricity generator11:40
ONE AMAZING DIY IDEA WITH BC547 TRANSISTOR AND OPTOCOUPLER 817.03:08
incredible diy idea using 12V transformer01:51
DIY NON CONTACT AC VOLTAGE TESTER USING IC CD4060.02:01
How to make amazing tester / really useful thing02:23
DIY VOLTAGE POLARITY TESTER WITH BUZZER.03:42
wow !! incredible idea that should be in every home | Simple Inventions | Homemade DIY Ideas02:14
How to turn any Old multimeter to multimeter supports NCV ( Non-Contact Voltage )01:28
DIY NON CONTACT VOLTAGE (AC) TESTER01:45
DIY NON CONTACT AC VOLTAGE TESTER02:23
DIY NON CONTACT AC VOLTAGE TESTER WITH TRANSISTOR C94501:44
DIY NON CONTACT AC LINE TESTER WITH IC CD401701:48
DIY AMPLIFIER WITH TRANSISTOR TIP41C & TIP42C02:48
NON CONTACT VOLTAGE TESTER #DIYVoltageTester #NonContactVoltageTester #ICCD406001:30
USB TESTER FNB48P FNIRSI тестер обзор нового гаджета20:52
DIY NON CONTACT AC VOLTAGE TESTER WITH IC CD4060,LED, RESISTOR, BUZZOR & TRANSISTOR BC557 #shorts00:53
DIY NON CONTACT AC VOLTAGE TESTER WITH IC CD4060,LED, RESISTOR, BUZZOR & TRANSISTOR BC55702:23
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