The values of the indicated components in this circuit of a 1967 Electronics World, are for a frequency of 512 kHz. The power can be between 6 and 22 V and the FET is a general-purpose type.
This circuit was published in an Italian magazine Radio Elettronica in February 1976. The...
Found in a Popular Electronics from the 90's, this circuit converts a 40 V symmetrical source to a 5...
This high selectivity circuit for single tone decoding was found in 1970s documentation. The coil...