G4RAW 80M QRP CW Transmitter:The original version was built on tag strip, hence the name. For PA, we can use BD139 instead of 2SC2078. It should have good heat sink.
The “G4RAW 80M QRP CW Transmitter” refers to a popular, simple, and low-power (QRP) Continuous Wave (CW) transmitter design for the 80-meter amateur radio band (typically 3.5 MHz to 3.8 MHz). It is often referred to as the “G4RAW Ten Minute Transmitter” or “G4RAW 80M QRP TAG CW Transmitter” due to its quick build time and common construction method on “tag board” or stripboard.
This transmitter is a staple for beginner homebrewers in amateur radio because of its minimal component count and straightforward design, making it an excellent educational project.