This ultrasonic digital remote-control transmitter was found in the January 1976 issue of Radio Electronics magazine. The components are from the period. The IC is from the period.
This circuit was found in Motorola's Linear Interface ICs of 1993. The integrated circuit used is not...
This configuration was found in a publication for radio amateurs in 1979. The two integrated...
This circuit makes use of a 741 single source operational amplifier to measure resistors on a...