Found in a 70s RCA manual, this circuit uses a transistor of the time for an UHF L band oscillator. Details of the resonant circuit, which is critical, were not given.
This simple timer can be used in many applications such as egg timer. The LED glows up when S1 is...
This filter was obtained from a Linear Technology manual from the 1990s. The power supply must be...
Found in 1965 General Electric technical documentation, this half-wave circuit controls shunt type...