This receiver was found in a Japanese publication in 1967. The circuit uses germanium transistors and details of the coils are not given. Power is supplied by a 9 V battery.
This circuit is from Motorola's 1993 Linear Interface ICs. The circuit must be powered by a...
This transmitter for short range in the medium wave range was found in a Raytheon publication from...
We found this circuit in a 1977 publication for radio amateurs. It serves to test general purpose...