Simple IF signal generator circuit using CMOS IC
This is a Simple IF signal generator circuit using CMOS IC CD4011-CD4040 and crystal-3.579 MHz into output AM: frequency 455 KHz In the event of AM radio repairs, basic tools that are usually found the IF signal frequency generator is used to determine the function of various sectors. Which these …
Simple loud buzzer circuit using transistors
A Simple loud buzzer circuit (trembling sound) is create a kind of ring circuit that provide a strange sweetness of general bell. It use all transistor so easy to builds and cheap, suitable for bedroom or a private room good or may be adapted into a bell. Listening to children …
Automatic water tank using pump controller by 2SD882
The automatic water tank by pump controller allows for a convenient and cost effective. In the countryside, Water is very important. The most to use the groundwater to dig as pond, and for the convenience, They often use the pump automatically, But waste a lot of electricity. Some homes have …
Variable Time base oscillator circuit by cmos IC
This circuit is a variable time base oscillator circuit that has operation as characteristics of high frequency pulse oscillator generator out to a Decade counter circuit. So that send a pulse signal appears at the output of one signal per the counting clock signal that as 10 pulse. Cause easy …