Found in a 1970 documentation, this circuit makes use of 741 operational amplifiers that are common today. Note that the power supply must be symmetrical.
Here is an interesting circuit to be used in physics demonstrations involving energy...
This circuit, obtained from a 1978 publication, generates damped signals and can be used in...
We found this circuit in a manual of optoelectronics from Texas Instruments. In it photodiodes or...