News post : Electronic Projects Circuits :Eleccircuit.com |  |
- Simple slant (tilt) alarm switch circuit
- Electronic bird sounds
- Door buzzer sound with CD4001 CD4060
- Sound bell circuit with ic 8021
- Simple electronic circuits
| Simple slant (tilt) alarm switch circuit Posted: 06 Aug 2013 03:12 AM PDT This is a simple alarm circuit.This work, when the switch S1 (sensor) tilted away from vertical.The alarm stops when the sensor back to the old form. S1 sensor is a mercury switch.Contact is a normal closed.When the switch is placed in a vertical.Transistor Q1 acts as a switch off, buzzer immediately.When the sensor back to [...]  |
| Posted: 06 Aug 2013 02:27 AM PDT Operation of the circuit.When pressed, switch S1. Circuits will work out a sound of birds.The R1, R2, C3 forward control transistor Q1 to work intermittently. The capacitor C4 determines the latency time, for each voice singing. In addition, there C2 as the feedback signal.If the C2 is much value,will make the bass sound. However [...]  |
| Door buzzer sound with CD4001 CD4060 Posted: 05 Aug 2013 11:48 PM PDT The Door buzzer sound circuit was two-tone sound. With the switch S1. working of circuit,The IC1 is a frequency dividing circuit, and generator a sound frequency came out.by the C1, R1 are the frequency generator. This audio signal from pin 7 and pin 4 into the pin 1 and pin 8 of the IC2a, IC2c [...]  |
| Sound bell circuit with ic 8021 Posted: 05 Aug 2013 10:24 AM PDT This is a simple bell sound generator circuit,Power supply 3Volt, and used on small speakers,and there is less equipment to create simple, well offline. Operation of the switch S1 is in ON position to a current flowing into pin 5 of IC.To IC1 by IC1 to work with a sound production IC Ting Tong.When we [...]  |
| Posted: 05 Aug 2013 08:50 AM PDT I understand that Simple electronic circuits is very important. My friends used to say the large projects electronics, came from small several electronic circuits to combinations. You would think that this statement is true. And some of your work. Lack of small things. The circuit will allow it to work well. Also for the beginner. [...]  |
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