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 CMOS touch switch was obtained in a 1987 publication. All components are common and the...
This directed coupled amplifier uses a transformer to drive a low impedance loudspeaker. This...
A negative pulse applied to the input of the circuit shown in figure bellow turns on the relay....