More circuits about oscillator, pulse, frequency , and others.
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...[...]
voltage to frequency converter circuit
See idea: Voltage to frequency converter circuit use CA3130 OP-Amp, that linearity Of changing up to 0.5% and Temperature coefficient.
ECG simulator circuit is very useful in the medical community. Such as experimental research - development of bio-medical image, using Digital IC as main [....]
This is Simple VCO circuit using schmitt trigger using 74HC14__Hex inverting, which inside have 6 schmitt trigger, but applied one frequency controller
The simple sine wave generator circuit that out of 30MHz,15MHz as main components is IC-number NE602, Double Balance Mixer IC to make as sine wave circuit.