This circuit uses a capacitor that depends on the frequency of the crystal. We found it in a 1967 documentation. The maximum frequency is around 100 kHz.
This circuit sources a ramp signal with characteristic given by the diac. The circuit is powered...
Found in old documentation, this circuit is intended for low level amplitude modulation with low...
Found in an article in the August 1971 Radio Electronics magazine, this circuit supports 106...