This circuit be Simple Metronome circuit model to be simple. It use the transistor be important equipment by very the circuit is the character Astable Multi vibrator. For produce something the sound beep. By can fine VR1 for get sound tone Generator follow can want. A loudspeaker that use to is supposed to impedance 8 32 ohm railing land. For
Click here to download the full size of the above Circuit.
decrease the popularity will down and may lead, output, go to feed reach still the amplifier microphone has changed, capacitors 10 uF. The detail is other, see in the circuit. This circuit is a simple signal. It can generate signals, both light and sound Alternating. Which can be applied to work. For example Taillight of bicycle or Turn left and the right of the bicycle. Etc. When entering into power supply circuit. by circuit will have Q1 and Q2 to be astable multi vibrator. This will work in any way ON and OFF. Or vice versa on all the time. And Pin Collection (C) of the two transistors. Connected to the light source device (LED1-LED4). For the audio source device is Buzzer BZ1. While the one ON transistor will allow the device is connected to pin C is running. The signal alternates between light and sound all the time. This is knock the melody. It uses begin flasher circuit in building sound click keen go up at a loudspeaker. But each time at PNP-transistor, Q2 type(2N3906-2N2907-or-BC558) work by origin frequency circuit that use RC and Q1-NPN transistor-type(2N3904 or 2N2222-or BC549), R2-potentiometer 50K is used for fine working rate repeatedly through 20-280 sections time per minute(tone), By value change of C1 (0. 1uF to 22uF) will change the tone of voice in the sound click at happens. You can get different (i. e. higher pitched) tones by messing with the capacitor value from 22uF to. 1uF electrolytics, and...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
characters left: