Found in documentation from the 1980s, this circuit uses a SG1524. It is an uncommon integrated circuit nowadays. The circuit provides a current of 20 mA with a symmetrical voltage between 15 and 18 V.
This circuit was obtained in an old magazine from the 1970s. The circuit can still be assembled with...
This circuit is from a 1974 publication. It generates a pulse with several sinusoidal cycles from...
This intermediate frequency amplifier step using 2 junction FETs has a gain of 20 dB. The pass...