We find this oscillator in a 1980s documentation. The frequency depends on the crystal and the transistor used must be able to oscillate at the desired frequency.
This circuit was found in a 1969 Mullard documentation. Used transistors can be replaced with...
This is a simulation of a Relaxation Oscillator using a programmable unijunction transistor (PUT). The...
This constant current source is from the LM11's own factory manual used in the application. The circuit is...