This circuit was found in Siliconix documentation from the 1980s. Equivalent operational amplifiers can be used and the output current is very low.
This shield circuit can serve as a basis for a digital mixer or simply for a switch without noise...
Found in a 1967 RCA documentation, this circuit can be made with equivalent SCRs according to the...
This circuit is from 2005 Linear Technology documentation. The circuit applies to 12 V systems and...