The sound of drums can be obtained with these two touch-triggered double-T oscillators. The circuit is from a Radio Electronics Special projects from 1993.
This high current regulator with low voltage drop was found in the datasheet of the used...
Found in a 1974 Ferranti transistor manual, this circuit drives a sensitive 12V relay in...
This simple source is indicated for voltage regulators of 5 A x 12 V as the one found in CB17141E. The...