Additional information and resources to help you study for the Extra Class License can Developing and presenting technical training for amateur radio. Club website at www.vhfclub.org contact the author for a copy of the instructors guide.
Copy of ARRL Tenth Edition of the Extra Class License Manual . E5D AC and
RF energy in real circuits: skin effect; electrostatic and electromagnetic fields;
reactive E7B Amplifiers: Class of operation; vacuum tube and solid-state
circuits; Transmit into a dummy load, receive the signal on a second receiver,