Diy digital voltmeter panel meter 0-50V
This is Diy digital voltmeter panel meter 0-50V is 0-50V scale. Display with LED 7 segment. In cost 3$ dollar only, builds simple regulator dc power supply
Meters & Detectors
Include: Volt meters :: Sound level meter :: Analog vu meter :: Soil moisture meter :: Digital meter circuit diagram :: Temperature measurements :: Electronic measurement tools :: Frequency meters :: Best battery tester :: Transistor tester project
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Simple SCR tester circuit diagram
Simple SCR tester circuit diagram is very useful. We can know location pin on gate lead, anode lead and cathode lead. can also test diode, LED and Triac
Simple high water level alarm circuit project
This is Simple high water level alarm circuit diagram which we need to build it since: fish pond The water level will drop rapidly. We need to check water
The telephone line status indicator
The telephone line status indicator to prevent the hearing others talk on the phone accidentally and a Protection to making phone calls simultaneously. […]
Simple metal detector circuit
This is a simple metal detector circuit, Can find various metal and adjustable sensitivity Easy to use near metal. use IC-NE556-Monostable multivibrator