This is a ham radio transceiver status display indicator circuit that small and easy to build. The application a Ham radio transceiver has 3 characteristic differential are Firstly is Monitored status or Sometimes called standby, Means to turn on the Ham radio transceiver to To listen or wait for a call from either one, will […]
We like to collecting the electronic circuits with PCB layout as ideal of building the Easy electronic projects, under different scenarios.
The projects are mostly old but still works great. Suitable for use or to study.
Now, We have a lot of articles(over 600 circuits). So, difficult for find the circuit as you need. It is a pity if you close this site without the great experience.Recent New Posts
In the Figure 1 circuit used Q1 is UJT to connects with VR1(potentiometer), VR2 and C1. They acts as a sawtooth wave generator circuit, by C1 to charge and discharge. Then, current from the 5V power supply through VR1 and R2. This current and voltage that increase and reduce, cause Q1 generate signal. Which have […]
This is the DC to DC converter project for converts from 12V car battery to dual voltage of +40V Ground and -40V (Available of +/-27V ; +/-30V ; +/-30V; +/-50V as setting parts) are used as power supply of 50W-100W amplifiers. When you want to increase your car amplifier. Essentially, there are 3 ways in […]
This is a simple sound effect generators that imitate the sound of water and wind in nature. At least 6 sounds by changing capacitance only. We use IC-MM5837 as an important device. So powerful. And budget. For example six sound effect are: 1. Rain on the metal roof. 2. Rainstorm 3. The wind in the […]
This is simple crystal oscillators that provided square wave of 1MHz to 10MHz, Use an inverter gate IC and control frequencies with crystal. A oscillator or a frequency generator provide waveform out in various forms. For example : sine wave, Triangular waveform, Or square wave. The Frequency generator to control or out for a base […]