This circuit was found in the February 1993 issue of Radio Electronics magazine. Some components depend on the crystal frequency and can be changed.
This circuit was found in an 80's Electronic Design. The frequency depends on the crystal and the...
Based on an OTA LM3600 operational amplifier, this circuit was found in the July 1988 issue of...
This 80's General Electric circuit is guarded by the noise-guard for operating current. The...