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.
More circuits about oscillator, pulse, frequency , and others.
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.
This is FM transmitter circuit without Coil, using inverter digital IC as main and controlled frequency is precise by a crystal. Figure 1 the circuit diagram In Figure 1 is…
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 [...]
This simple AM transmitter circuit include of many parts. There is a transistor Q1 act as increase the audio signal (AF) from the crystal microphone and...[...]
See idea: Voltage to frequency converter circuit use CA3130 OP-Amp, that linearity Of changing up to 0.5% and Temperature coefficient.