Electronics Design Software (free or sharew)

• Freeware Indexes/Archives:
  
  • SysInternals
    
  • Web EE
    
  • Rfcascade, freeware by Greg
    
  • Terry P. Schem/PCB sw links
    
  • freecad.com CAD/CAE freeware archive
    
  • Tech Systems spice/PCB/schem
    
  • Switchercad, filtercad from Lin. Technology Inc.
    
  • electronics-tutorials.com CAD downloads
    
  • Scilab math/sci, FFT etc.
    
  • Other free EM code, and more
    
  • Finite Element Resources
    
  • Greg, rf cascade
    
• PCB freeware
  
  • Eagle Lite
    
  • ExpressPCB Buy Pcbs
    
  • PCB Artist Adv. Circ.
    
  • pad2pad, buy PCBs
    
  • pcb123 buy pcbs
    
  • WinQcad
    
  • Merlin PCB
    
  • Cadint PCB
    
• Orcad PSPICE 9.1 Student vers
  
• LTspice Lin. Tech
  
• 5-spice shareware
  
• Digital Works simulator (shareware)
  
• Designworks Lite (schematics)
  
• Protel free trial
  
• NuHertz filter design
  
• Free Student Version of the Quickfield magnetic/electrostatic/thermal simulator
  
• XMDS math simulator
  
• FEMM finite element magnetics
  
• Sonnet Lite for PCB rf reflections
  
• ACD/Chemsketch molecular modeling (free to schools)
  
• 3D e-field cad
  
• CFD fluid dynamics
  

FPGA, VHDL stuff

• VHDL FAQ
  
• Atmel AVR programming sw
  
• FPGA devel, webpak ISE (Xilinx)
  
• COMP.LANG.VHDL
  
• VHDL cookbook (pdf, via FTP)