This circuit was found in a 1965 General Electric documentation. SCRs and unijunction may be current equivalents. The circuit has period adjustment and symmetry.
XTAL from 4 to 20 MHz can be used in this oscillator. The XRF choke can range from 10 to 100 µH...
This circuit was obtained in a Hobbyst Handbook from 1990. The circuit can be easily assembled...
) This circuit was obtained in 1965 General Electric documentation. SCRs can be modern common...