Based on the Linear Technology LTC2054, this -48 V circuit was found in a 2005 manual. The circuit is powered with 5 V and can be used as a shield.
This simple medium wave receiver was sold in the 1960s in Japan. The circuit used germanium...
This simple circuit makes use of neon lamps to indicate the voltage of a power grid. The lamps are...
This frequency divider circuit that generates a ladder-shaped signal was found in the June 1968...