Construction, Modification, and Repair References
Component Vendors
QRP ARCI list of suppliers of QRP kits and parts
Expanded Spectrum Systems run by Rich Kennedy, N4ESS, sells crystals for the ham bands.
QRPme run by W1REX has lots of kits, boards for SMD to Manhattan construction, crystals, and components.
Electronic Goldmine has a low $10 minimum and good deals on diverse electronic surplus.
W5SWL Electronics has no minimum and cheap shipping on RF connectors.
Galco Industrial Electronics has no minimum and better prices on some components than the bigger companies.
And the obvious big vendors: Newark / element14 Digi-Key Mouser Electronics
Dan's Small Parts and Kits has a lot of parts. But unless you use one specific broken browser, his site doesn't work right.
Hardware References
Fabricate Your Own Semiconductors
sci.electronics.repair FAQ
Silicon Sam's Technology Resources"Notes on the Troubleshooting and Repair of...",
Laser FAQ, and other documents American Science and Surplus Pete Millett's DIY Audio pages
with digitized older technical books The SMD Codebook
Look up surface-mount device codes
Pinouts (communications connectors, video and
other multimedia, computer buses, power supplies, etc):
HDMI cables and connector pinouts
SVGA cables and connector pinouts
EIDE / PATA / SATA / USB cable pinouts
Tommy's Pinout Collection
Pinouts.ru
RGB pinouts at hut.fi
RGB pinouts at tkk.fi
Video standards and monitors and pinouts
Keyboard, monitor, mouse, USB, IEEE 1394, etc:
Vacuum tube pinouts