High-power PTC thermistors PTC to test a simple practical method of this type generally used in tlevizyo and monitor control rarely fails for this reason they will not be forgotten in supply failure, keep in mind;)
220v ac supply given the PTC sturdy lamp gives light after an instant PTC heats the internal resistance increases and the lamp goes PTC short circuit is open circuit to give continuous light lamp does not light
PTC Tester
CAUTION Be careful test system is working with high voltages necessary precautions Before running the insured Electricity Line, Use protective glasses
Published: 2009/02/09 Tags: interesting projects electronics, simple circuit projects
Audio Video multiplexer Circuit (amplified) LM833 MAX497
video and audio distributor 6-channel audio video multiplexer circuit max497 and lm833 amplifier integrated based on the supply voltage of 12 volts dc 12v 78xx series positive regulators integrated with düşürülüp 555 timer integrated with the negative translated to different applications can be useful
MAX497 LM833 Amplified Audio Video Multiplexer