This simple charger was found in a 1980s documentation. The transistor may be the TIP42 with a heat sink. R1 adjusts the load current. The transformer has 1 A of secondary current.
A simple VCO using two inverters in a ring configuration is shown here. A VCO is a circuit in...
This circuit was found in the 1990 Motorola Linear Databook and can use almost any operational...
This circuit sources a ramp signal with characteristic given by the diac. The circuit is powered...