VHF Dip Meter circuit
The frequency meter by use the LC resonance circuit that adjustable until the frequency show peak amplitude.
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July 23, 2017
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 555 IC Tester Circuit Diagram
Normal multimeter cannot check it. This circuit can help you.
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Five Battery low voltage alarm indicator circuits
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5 Light sensor alarm circuits
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