Though out of print at some primary retailers, it can still be found through specialized distributors like DX Engineering or secondhand on AbeBooks and eBay .
Designs cover HF (High Frequency), MF (Medium Frequency), VHF (Very High Frequency), and microwave bands. ARRL RF Amplifiers Classic
The collection provides practical "how-to" construction details for both and solid-state amplifiers across a wide frequency range: Though out of print at some primary retailers,
One notable inclusion is the use of modules, which utilize push-pull JFETs that behave similarly to triode vacuum tubes, simplifying matching to 50-ohm systems. The book also includes any revisions or corrections provided by authors after their original magazine debut, ensuring higher reliability for homebrew builders. Legacy and Availability MF (Medium Frequency)