This setting is valid for other transconductance operational amplifiers. The circuit is from Motorola's 1990 Linear Databook. The power supply must be symmetrical.
To power small projects, we found this circuit in the Radio Electronics magazine of May 1977. The...
This SCR circuit can operate on frequencies from 1 to 20 kHz. We found it in an American...
This shield circuit was found in an American publication from the 80's. The triac is of low...