The Silicon Valley of old is basically dead. The
magic is gone.
The two suplus stores are gone (Halted and Weird Stuff Warehouse.) Only
thing I can think of that I would recommend is the Musee Mechanique over
in San Fran.
https://en.wikipedia.org/wiki/Mus%C3%A9e_M%C3%A9canique
For suplus parts I guess you gotta go to Shenzhen these days.
--
: Ethan O'Toole