This 80's circuit has been winning. It is a 1 000 gain sample and hold circuit and an offset current setting. The configuration can be adapted to operate with modern equivalent components.
This circuit was obtained in an old English magazine (TSI) 1998 and consists of a Schmitt trigger...
This is the simulation of a Ultrasound Receiver using the 741 IC, an operational amplifier....
This circuit was found in a 1980s US publication. There may be some difficulty in obtaining the...