This circuit was found in an old documentation, being able to generate signals of frequencies in the range of 50 to 100 MHz. The components are of the time.
Other operational amplifiers series, such as the MC34072, MC34074, MC35071, MC35072, MC35074 or...
We found this circuit in an English publication in 1982, but it can still be easily assembled by...
This conventional slow-moving circuit uses incandescent light bulbs, but can be changed to use...