This circuit was found in a Popular Electronics from the 90s. The circuit uses TTL technology and must be powered by a voltage of 5V.
What sets this transmitter apart, which we found in a 1990 documentation, is the modulation by the...
This circuit is from 1980s documentation. The maximum operating frequency is 3.5 MHz. The current of...
We found this interesting circuit in a 1969 American documentation. It shows a solution with...