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Electronic circuit kits

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Today I want to introduce many electronic circuit Kits.Because I understand that sometimes you’re looking for a good electronic project easy creation and effective look below.

Cricket voice with buzzer using LM324

This is a cricket voice circuit which is an another Sound effects generator byLM324 op-amp and emit by a buzzer. And they have sound similarly the crickets are singing a couple we’ve ever heard. In circuit we don’t use any microcontroller ICs so you can build easily them and also cheaper. Technical information – Use power supply of 9 Vdc. – Maximum consumption current about 30 mA – PCB size : 2.25 x 1.57 in …

The 4 sound effect using UM3561

Here is a 4 sound effect that use one IC-UM3561 and a few parts only. It can make siren, Ambulance sirens, Police car sirens, Fire truck siren and Space Machine Gun Sound effect How it does works As Figure 1 is the circuit diagram. To begin with R1 is connected to pin 7 and pin 8 of IC1. Which are the OSC1 and OSC2 pins will controls frequency of the oscillator circuit inside IC1. If value of R1 lower will …

AM simplify radio with earphone

This AM simplify radio with earphone is a saving version that use a few parts, cheap , easy to build and Suitable to be assembled to study. Technical information Use power supply of 3 Vdc. Maximum consumption current about 45 mA PCB size : 2.38 x 1.24 inch. How does it work. A circuit diagram that shown in Figure 1 IC1 MK484 acts as receiver system by have variable capacitor and OSC coil as frequency adjust …

High power 6 LED Flashlight for 1.5V AA battery.

This circuit look like a torch by use on 1.5V battery only so it can be used. Since small so Easy to carry in various places. And also very bright as well. The technical information Power supply : one 1.5V AA battery. Maximum current used 200mA Uses 6 white LED. Small size PCB. How it works As usual, the LED light when voltage is 1.8V or 2V, We need a way to increase the voltage to rise,by the switching sup …

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