The integrated circuit used is no longer common today. The circuit is from Motorola's 1990 Linear Databook. The characteristics are given in the table.
This circuit was found in the magazine of radio amateurs 73 in a 90's edition. The components are...
This circuit was found in a 1974 publication. It converts the applied voltage into pulses of...
This circuit generates approximately 30 Hz signals from a 3.3 kHz clock. The circuit was found at...