This circuit was obtained from an 80's Radio Electronics. The circuit decodes “scrambled” or sinusoidal encoded signals by providing an audio signal at the output.
This high-performance circuit was found in the 1982 SGS Linear Integrated Circuits Manual. The...
This circuit is from an ancient American documentation. The coil is frequency dependent and the...
We found this circuit in documentation from the 1980s. The transistors can be the BC558 and the...