This circuit was obtained from a 1980's QST magazine. The circuit can generate 1 to 15 MHz signals with 1 Vpp at 50 ohms load. Used transistors are still common today.
This transmitter for the 7 MHz range, as we can assume by the number of turns of the coil, since the...
This circuit was obtained from a 1967 General Electric documentation. The circuit makes use of...
This circuit is from an Electronic Design of the 90's. The circuit can be implemented with more...