Chip Directory
http://www.embeddedlinks.com/chipdir
http://www.embeddedlinks.com/chipdir/mirror.htm?index.htm
Giant Internet IC Masterbator
http://www.falstaff.demon.co.uk/GIICM.html
Integra Technologies L.L.C.
http://www.integra-tech.com/swlibry.html
Rudd’s Commodore Site: Electronics
http://home.hccnet.nl/g.baltissen/elec.htm
IntuSoft Spice models
http://www.intusoft.com/models/total2.txt
PartMiner Direct
http://www.freetradezone.com
TTL datasheets
http://www.cubic.org/source/archive/hardware/discrete/ttl/#mand
SUPPLIERS
CMOS
http://hamradio.cmcorp.com/inventory/LOGIC/cmos.html
ICs
Futurelec
http://www.xs4all.nl/~ganswijk/chipdir/n/76.htm
OBSOLETE
Alltronics
(408-943-9773; http://www.alltronics.com)
Chip Directory
http://www.ba-karlsruhe.de/chipdir/obsolete.html
D.R. Components
561-274-8840; http://www.drcomponents.com/stockcheck.html
Obsolete IC Sources
http://www.bithose.com/serfaq/REPAIR/F_Obsol_IC.html
Online Technology Exchange, Inc.
800-606/8459; http://www.onlinetechx.com
Surplus/Excess Electronic Components
http://www.xcess.com/Products/ic.htm
Worldwide Semiconductor
http://www.worldsemi.com/