This is a FM Wireless Microphone circuit Which we add one transistor in the RF amplifier. So this circuit have two resonance circuits and also two trimmers. This cause have Higher efficiency and transmission far up. Read more
This the fm wireless transmitter circuit, the truth is one kind microphone that developed to be used without a cable from the microphone to the amplifier. Read more
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
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
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