Simple Photo Switch Circuit

admin May 24, 2010 2 Comments
Circuit Description The circuit diagram given here is a photo switch which switches on a relay when the intensity of light falling on its sensor changes from a preset limit. The central part of this circuit is the IC...
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Power Supply Circuit Using LM 317 IC

admin May 24, 2010 No Comments
Circuit Description The circuit diagram 40V 2A power supply circuit has been described here. The central part of this circuit is the voltage regulator IC LM 317. This power supply circuit is ideal for circuits such as power amplifier circuit...
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Simple Melody Generator Circuit

admin May 24, 2010 2 Comments
Circuit Description The circuit diagram given here is a simple melody generator. The core part of the circuit is the IC UM66 which is a CMOS type IC. One of the main features of this circuit is that in...
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Op-Amp Radio Circuit

admin May 24, 2010 2 Comments
Circuit Description Here is the circuit diagram of simple operational amplifier radio that can be employed to hear nearby stations. This circuit is based on quad operational amplifier LM 324. This operational amplifier radio consists of crystal radio and sensitive...
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