Found in a 1967 General Electric documentation this circuit uses unijunction transistors that may be equivalent to those indicated. The number of stages can be modified.
This oscillator generates C1-dependent rectangular 100 kHz signals. The circuit requires symmetric...
The astable multivibrator shown by the figure can produce signals in the 10 to 10 000 Hz band...
We found this circuit in a Radio Electronics from December 1963. The circuit combines valves and...