This circuit was obtained in a 1970 EEE and applies to almost any operational amplifier. The supply voltage depends on the operational amplifiers used.
This circuit was obtained from a Poptronics in June 2001. The magazine no longer exists, but the...
This is a simulation of a Relaxation Oscillator using a programmable unijunction transistor (PUT). The...
Found in a 2005 Linear Technology application manual, this circuit provides outputs from a current...