sci.electronics.misc - join
General discussions of the field of electronics.
Low activity, 1476 subscribers, Usenet

sci.electronics.basics - join
Elementary questions about electronics.
Medium activity, 3990 subscribers, Usenet

sci.electronics.components - join
Integrated circuits, resistors, capacitors.
Medium activity, 1403 subscribers, Usenet

alt.electronics - join
Low activity, 361 subscribers, Usenet

aus.electronics - join
Electronics hobbyists and engineers.
Medium activity, 456 subscribers, Usenet

rec.antiques.radio+phono - join
Audio devices and materials of yesteryear.
High activity, 977 subscribers, Usenet

alt.engineering.electrical - join
Discussing electrical engineering.
Medium activity, 1501 subscribers, Usenet

rec.audio.tubes - join
Electronic audio circuits which use vacuum tubes.
Medium activity, 680 subscribers, Usenet

rec.audio.tech - join
Theoretical, factual, and DIY topics in home audio.
Medium activity, 1073 subscribers, Usenet

rec.radio.amateur.homebrew - join
Amateur radio construction and experimentation.
Low activity, 705 subscribers, Usenet