This thermostat circuit triggered by a neon lamp and having a thermistor as a sensor was found in an old American documentation. SCR is according to load.
This receiver was obtained in a documentation from the 90's and is of the super-regenerative type....
This circuit couples 600-ohm signals to a line of the same impedance consisting of an amplifier stage....
The circuit presented is from an old magazine having been translated and published in a national...