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.
Found in a 90s 303 Circuits, this circuit uses the KTY10 sensor, widely used at the time. | Clique na...
This circuit is from a 1967 publication. It is possible to power a fluorescent lamp from a 12 V...
This unusual output stage was found in the October 1974 issue of Radio Electronics magazine. The...