This simple nicad battery charger uses a current regulator with the LM350. This integrated circuit must be mounted on a heat sink. The resistors determine the charging current and 7.5 V transformers can also be used.
This is stage is transformer coupled and was found in na old publication of the year 1958. The...
This circuit turns on a lamp in the dusk and turn off in the down. Only incandescent lamps can be...
This experimental touch switch uses two general-purpose NPN transistor. The lamp can be replaced...