This circuit was found in the January 1999 issue of Electronics Now magazine. The circuit uses an integrated circuit from the period and has earphone listening.
This shield with feedback to control the direction of rotation of DC motors up to 500 mA with...
This very high voltage (VHT)generator was found in a 1995 documentation. The transistors must be...
Found in a 1967 documentation, this infrared amplifier is intended for use in a Nipkow disc camera...