Simple Frequency Divider using one transistor BC549
If you looking for simple frequency divider circuit. This may be suitable for you. It will divide a frequency of input signal into just half to output. Read more
RF – Radio Circuits
3 Simple AC Wattmeter circuits
If you are looking for AC power measurement. To use it just a little, which is not worth it. When we need to buy an expensive tool. Because use little does not need high accuracy. I would like to propose the concept of wattmeter circuit in such a way easy as it was.I collected all … Read more
Long range fm transmitter circuit,2W(2 km) 88-108 MHz frequency VHF
This is long range fm transmitter circuit in VHF range. As Figure 1 Sonar with up to 2 watts, when used with a supply voltage of about 24V. Read more
FM transmitter circuit without coil
This is FM transmitter circuit without Coil, using inverter digital IC as main and controlled frequency is precise by a crystal. In Figure 1 is RF oscillator circuit which use an inverter IC1/2 and ceramic crystal filter 10.7 MHz to use drive IC1/4 – IC1/6 by through IC1/3. Figure 1 the circuit diagram When inverter … Read more
1.5V FM transmitter circuit, 88-108MHz using transistors
These are four 1.5V FM transmitter circuit (low volt) which use transistor and a few parts, without PCB but easy to build for output 88-108MHz or 90-100MHz, more circuits below […] Read more