E-M Designs, Inc. - EE Group [ formerly Gerhard Engineering ]

FREE STUFF / LINKS

FREE TOOLS

ViewMate - an excellent Gerber viewer that accepts most aperture list formats. ViewMate

Convert - a useful conversion program for converting almost any units of distance, area, volume, power, energy, etc. Convert

UltraCAD - a freeware program for calculating characteristic impedance for PCB traces. This site also has good technical papers regarding PCB layout. UltraCad

FreeDiff - A freeware text comparison utility FreeDiff

DATA SHEETS

ICs / Discrete Semiconductors:

Actel       Analog Devices         AMD        Apex       Atmel

Benchmarq        Burr-Brown        Cherry        Cirrus

Crystal        Cypress        Dallas       Diodes Inc       Elantec

Exar        Fairchild         Fujitsu         Harris / Intersil

HP (Agilent)        Hitachi         IDT       Infineon

Intel      International Rectifier          Linear Tech          Maxim

Micrel        MicroChip      Micron            Microsemi (Linfinity)

  Mini Circuits        Freescale (Motorola)         National         NEC

OKI        ON Semi          Panasonic       NXP (Philips)

Rohm        Samsung        Sanyo        Sanyo (Japan)

ST Micro (SGS-Thomson)       Sharp        SPT         Teccor

Vishay / Siliconix        T.I.        Toko         Toshiba        Unitrode

Xilinx         Xicor        Zetex

Magnetics:

ACT        CoilCraft        Coiltronics        Fair-Rite

Ferrox Cube        JW Miller       Magnetek Triad        Magnetics, Inc.

MWS Wire        Pico       Pulse Magnetics        Premier

Signal Transformer        Stancor        Sumida        Toko        Tokin

Top Magnetics        Vishay

Resistors / Caps:

AVX       BC        Bourns        Caddock        Cornell Dubilier

CTS        Dale        Electrocube        ELNA

Evox Rifa        Illinois Capacitor        IPC

IRC        Jamicon        Johanson        Kemet        KOA

Mallory        Milwaukee        Murata        NEC        NIC

Nichicon        Novacap        Ohmite        Pacific Resistor

Precision Resistor        Panasonic        RG Allen        Rohm

Rubycon        Sanyo         Spectrol        Sprague Goodman

Sprague Vishay        Sate of the Art (SOTA)         Tokin

TDK        United Chemicon        Vishay        Wima

Xicon        Yageo

Connectors:

3M        Amp / Tyco        Amphenol        Assmann

Augat        FCI (Berg)       Buchanan        Cinch

CUI        CW Industries         Harting        Hirose       Honda

JAE        Johnson        JST        Keystone        Mil-Max

Molex      NorComp        OST        Phoenix Contact

Positronic        Samtec        Sullins       Switchcraft

T&B        Weco        Weidmuller        WPI Viking

OTHER LINKS

CAD:

Altium - CAD system for schematic capture and PCB design

SolidWorks - Mechanical CAD system

Pro/E - Mechanical CAD system

MicroCap - Analog Simulation

MathCAD - Mathematics

Part Vendors:

Digikey Allied Mouser Newark Jameco
Nu Horizon Arrow Future Avnet

PCB Fabrication:

Advanced Circuits American Standard Circuits

Track Shipments:

FedEx UPS

Magazine / Catalog Pages:

EEM IC Master Electronic Source Book

EDN Printed Circuit Design Sensors

Microwave Journal Electronic Products

Customers and Friends:

NeuroComp Systems, Inc.

Thola Productions

Iris Technology Corporation

Max Q Systems, Inc.

Electronic Design Associates, Inc.

Motorcycle Stuff:

PlasticWerks ThumperTalk Motonews

VitalMX Racer X Illustrated

Family Stuff / Photos:

Gators Rugby U14 2008 Gators Rugby U14 2009

Benn

Old School MX Mini bikes 1983