For signals up to about 500 kHz modulated in amplitude and transmitted by the power network, the figure shows the receiver. The circuit is from a Radio Electronics from February 1989.
This sensitive AM radio doesn’t need external antenna, picking easily local stations. The output...
We found this circuit in an American publication from the 90s. The transistors must be provided with...
This circuit generates a frequency modulated tone with excellent power. Other power MOSFETs can be...