1/ Halted computer surplus, aisles of electronics and surplus, leds/lcds/resistors/etc… http://www.halted.com/ 3051 Corvin Drive, Santa Clara, CA
2/ The Electronics Flea Market. Old school Hamfest / computer flea market Next one is April 14, 2018 Electronics Flea Market at the parking lot at Fry’s Electronics in Sunnyvale https://www.electronicsfleamarket.com/ 1077 E Arques Ave Sunnyvale, CA 94085
3/ Al Lashers electronics in Berkeley, store filled with electronics, etc… http://allashers.com/ 1734 University Ave – Berkeley – CA 94703
4/ Central Computers in SF, probably the only place you can buy an Arduino in SF! https://www.centralcomputers.com/ 837 Howard Street, San Francisco, CA
5/ Jameco Electronics store, electronic components and some kits 1355 Shoreway RdBelmont, CA 94002 https://www.jameco.com
6/ Ham Radio Outlet Oakland store. Amateur radio equipment, antenna wire, books, etc.. Great demo set up of live radios and rooftop antenna. 2210 Livingston St. Oakland, CA Stop off a block away at Quinns Lighthouse for a lunch if the weather is nice and watch the boats go by
7/ Electronics Plus components and compute rparts and more https://www.electronicplus.com/contact.asp 823 4th Street, San Rafael, CA 94901
8/ Evil Mad Science LLC kits, arduino and parts https://shop.evilmadscientist.com/
1285 Forgewood Ave Sunnyvale, CA 94089