We found this circuit in an 80's Electronic Design. It makes use of couplers of the time that can be replaced with equivalents.
This 2-CK722 oscillator was found in a march 1961 Radio Electronics Magazine. The circuits need...
The two circuits we suggest are from the book Optoeletronics - Theory and Practice by Texas...
This interesting configuration of optical triggering using an oscillator was found in a 90s...