Spectrum Electronics Engineering Technology
Discrete Fourier (Laplace) transform with its results on laptop computer screen. For transform of sine waves from the time domain to the frequency domain to selects sine waves by frequency.
Discrete Laplace time domain to frequency domain transform mathematics.
Input and output voltages of a common source field effect transistor stage.
Spherical Shaped Rolling Robot Magnus
Crystal radios for receiving 0.7 to 1.2 megahertz frequency range local broadcast station signals.
Colpitts oscillator capable of generating sinusoidal frequencies in the 100 megahertz range at 0.3 volts-peak output from the collector. Inductance L has 3 turns solenoid with 5 millimetre inner diameter and 9 millimetre length.
Electronic Telephone Transceiver
Simple 0.5 to 1.2 Megahertz Broadcast Radio Receiver.
Above simple 0.5 to 1.2 megahertz broadcast radio receiver breadboard test circuit.
Superregenerative detector of walkie talkie transceiver model WT-401B by General Electric. Carrier frequency: 27.125 megahertz. Distance range with 0.1 watt transmitter: about 1/4 mile.
Aventador: 520 kilowatt engine, four wheel drive supercar. Larger wheel base.
