Found in an Electronic Design from the 1990s, this circuit generates signals from 500 kHz to 1 MHz that are digitally synthesized to provide a sinusoidal output.
This circuit is from a technical documentation from Texas Instruments from 1978. In it we have the...
We found this circuit in a publication with experiments with operational amplifiers from 1973. The...
Using a varactor or varicap, this 1969 Electronics World circuit has a modulation range from 75...