This circuit was found in a documentation of the time. It consists of a receiver with two RF stages for the medium wave band. The audio power is on the order of 2 W.
The circuit presented is quite simple, employing tone modulation of the signal. To receive the...
This fast-acting circuit was found in the July 1969 Radio Electronics magazine. The trigger point...
This preamp was found in an old English publication. Any usage JFET can be employed. The output is high...