This Wien bridge oscillator was found in Radio Electronics from the 90s. The circuit uses the 741 which is a current component. The circuit requires a symmetrical power source.
We found this 150 MHz preamplifier with 20 dB of gain in a documentation from the 1980s. The FET...
This circuit has been found in older telecommunications documentation. The circuit switches off after...
This circuit is from a 1990 Philips Databook. The circuit uses a symmetrical source and power from...