Ham Radio Exam Prep
Current Ham Radio Test Pools
Technician License 2018-2022
Free Practice Test: Technician
General License 2019-2023
Free Practice Test: General
Amateur Extra License 2020-2024
Free Practice Test: Amateur Extra
Gallery
Resources
LIVE
Amateur Extra Class: 2020–2024
Today
Sections
E1: Commission's Rules
E2: Operating Procedures
E3: Radio Wave Propagation
E4: Amateur Practices
E5: Electrical Principles
E6: Circuit Components
E7: Practical Circuits
E8: Signals and Emissions
E9: Antennas and Transmission Lines
E0: Safety
Quick Index
Practice Test
Help support WaveTalkers using
Buy Me A Coffee!
Element 4
E6
E6B
E6B08
E6B08:
Which of the following is a Schottky barrier diode?
Metal-semiconductor junction
Electrolytic rectifier
PIN junction
Thermionic emission diode
E6B01
E6B02
E6B03
E6B04
E6B05
E6B06
E6B07
E6B08
E6B09
E6B10
E6B11