This old fashioned transistor amplifier was found in a publication of the year 1958. Transformer are the critical components in the circuit and power comes from 6 D cells.
This circuit activates an incandescent lamp at dusk and goes out at dawn. The sensor is an LDR and...
This circuit that simulates the sound of a drum is part of an article published in the Radio...
This version of the Pierce oscillator with the 2N3904 was found in the January 1994 issue of...