Attention developers! get your free electronic Circuit making listed here, please dorp me email with the details at (Managed by Qamar Zaman since 12/2006) 
Webpage upadated on 21/09/ 2010
 Email your suggestions at qamar@pamec.co.cc  
thank for preparing the list. Enjoy.

Shareware and Freeware for download

Please contact
 Khaliq-Ur-Rehman
Khaliq@pamec.co.cc
1.  1000 Hz Firmware code for a 1000 Hz DSP filter.

2.  2340.zip 114k Program for designing PLLs (74HC4046, etc)

3.  3065.zip 317k TRAKSAT satellite tracking program (NORAD/NASA)

4.  3086.zip 94k Philips MOSFET device data

5.  3087.zip 109k Philips transistor data

6.  3088.zip 92k Philips opto device data

7.  3089.zip 110k Philips diode data

8.  3330.zip 299k ELECTRON: circuit design & calculation progs

9.  3441.zip 166k Design data on popular types of heatsink

10.  3993s.pcb 22k PCB design hints chart courtesy RCS Radio

11.  400 Hz The firmware code for a 400 Hz DSP filter.

12.  555 Demonstrator Demonstrates the use of the 555 timer chip in either astable or monostable mode. For Windows.

13.  555 Timer Interactive 555 timer designer

14.  555.zip 231k Windows based 555 calculator

15.  555calc.zip 438k 555 + LCR calculator for Windows - very nice!

16.  555timer.exe 31k 555 timer calculator, astable mode. From RCS Radio

17.  750 Hz Firmware code for a 750 Hz DSP filter.

18.  A-Filter Active filter design program. Designs high and low pass filters.

19.  ACANA A small signal analysis program to determine the AC response of a circuit. Uses the Guass-Jordan algorithm.

20.  ACIRAN A linear AC circuit analysis program for active and passive circuits. Handles many components, and has many models included.

21.  AMPTRACK - Leiterbahnstärke /-abstand Kalkulationssoftware

22.  amptrack.exe 36k Calc's current capacity of PCB tracks (RCS Radio)

23.  ANALYS A time series analysis package including FFT, wavelet, and coherence; and Winger-Ville for digital filtering, plus more.

24.  as5_new.exe 18k Motorola's freeware 6805 assembler

25.  atraxpcl.zip 5k Fast HP-PCL Autotrax printer drivers

26.  audchk.zip 82k Checks if your sound card supports full duplex

27.  AutoCAD-PCB A collection of utilities for the creation of printed circuit boards under AutoCAD.

28.  baycom15.zip 147k Packet radio terminal prog for PC without TNC

29.  BB SPICE Burr-Brown IC SPICE models.

30.  Berechnen von Multilayer - Lagenaufbauten (3,5 MB) von Isola

31.  Board Layout Program V1.2 Inteligent PC-BOARD layout program

32.  boxplo.zip 25k BOXPLOT speaker box designer for Windows

33.  Burr Brown Filter Pro A design program for use with Burr Brown components. Allows the creation of many types of filters including Sallen-Key low pass.

34.  CapCad A Capacitor Calculator. Find S-parameters.

35.  CCICAP A linear circuit analysis program. Includes resistors, capacitors, inductors, and more.

36.  CirCad A graphical circuit designer and autorouter.

37.  Circuit Solver AC/DC circuit problem solver v6.0

38.  Circuit v1.2 Microcomputer circuit analysis package.

39.  CLC SPICE PSPICE models for Comilinear amplifiers.

40.  CRT Alignment A program to aid in the alignment of your CRT's electron beam guns.

41.  dancad26.zip 915k Powerful CAD/CAM shareware package for DOS (Jun/Jul 99)

42.  DC Analysis Performs circuit analysis on DC circuits. Like a lab workbench. Documentation is also a tutorial on computer circuitry.

43.  demorcs1.pcb 23k "Good Design Practice" PCB (RCS Radio).

44.  Design Works v6.0 [1/3] A Windows based PSPICE and PLOGIC circuit design and analysis tool. Includes a great shell for running its many utilities.

45.  DESPACK HP-CMCD semiconductor S-Data.

46.  Digital Logic Analyzer v1.2 A hardware logic analyzer for debugging electronic circuits. For Windows.

47.  DigSim A digital logic simulator for Computer Scientists and Engineers.

48.  DLANET A polynomial/circuit analysis package with built in editor.

49.  Droege A PCB design utility that supports multi-layered boards, and has the ability to output to plotters.

50.  DVOM Sim for Windows A DVOM simulation program for Windows. Intuitive user interface.

51.  eaetihe.exe 241k Listing of all PCBs for EA/ETI projects

52.  easyover.com 33k Easytrax/Autotrax User Guide

53.  easypadz.exe 43k EASYTRAX GLOBAL pad type/size converter

54.  EasyTrac v2.06 Powerful package for producing printed circuit artwork. Has Component library support and full plotting capabilities.

55.  easytrak.exe 45k EASYTRAX GLOBAL Track Width Converter. 

56.  ecd31.zip 155k Electronic Circuit Designer - circuit calculations

57.  EE-DRAW A circuit design package. Uses parametric drawings.

58.  Elec-CKT A program for designing simple circuits. Menu driven.

59.  Elecrtonic Circuit Cad Circuit designer and router

60.  Electrc8 Lighting, motor, and general electrical circuit calculations.

61.  Electron Electronics design aid

62.  Electronic Analog Sim. Windows-based analog CAD simulator performs AC/DC circuit analysis

63.  Electronic Circuit Interactive program for designing the more common electronic circuits

64.  Electronic Circut Designer Electronic Circut Designer v3.1

65.  Electronics Work Bench Useful electronic circuit designer

66.  emcfilt2.zip 264k EMC filter design software -- Twin Tee, etc

67.  EMP A fascinating tutorial on Electromagnetic Pulses.

68.  EZ Place A PC-Board creation utility. Wire frame CAD.

69.  ezschem1.exe 8k Doc file for EZYSCHEM.LIB - self executing 

70.  ezschem1.lib 77k Draw schematics with Easytrax! - component library 

71.  ezschem1.pcb 131k Reminder chart for EZSCHEM1.LIB 

72.  ezschem1.zip 59k All three EZSCHEM1 files (PCB,EXE,LIB) compressed 

73.  eztime95.zip 122k 555 Timer Astable/Monostable designer.

74.  filter11.zip 37k Electrical filter designs, esp Butterworth

75.  FIR FIR digital filter design program.

76.  g7to.zip 182k PC-GPS software for Garmin or Lowrance GPS (GPS Exposed, Dec 99)

77.  GCP High quality CAD aid for PC Board design.

78.  gdsdemo.zip 47k Demo software for a PC-driven GDS programmer

79.  hhs5.zip 201k Download/viewer for Velleman handheld scope -Win95

80.  HP's Appcad [1/3] A circuit design tool from Hewlett Packard. Has transistor design data, a microwave calculator, impedence matching, & more.

81.  HP's Appcad [2/3] Part 2 of 3.

82.  HP's Appcad [3/3] Part 3 of 3.

83.  IC Editor A complete IC layout tool. Does it all.

84.  inoutdll.zip 2k Parallel in/out DLL for Visual Basic for Windows

85.  Intuisoft Fuse SPICE models of several different fuses.

86.  Lena Circuit analysis program for use with up to 56 node, 204 branch electronic networks.

87.  LENA for DOS v1.0 Linear Electronic Network Analysis. Performs frequency analysis on electronic circuits. Handles up to 56 nodes & 204 branches.

88.  LM12454/8 An LM12454/8 Data Acquistion System design kit from National Semiconductor.

89.  logisym.zip 45k Logisym digital circuit simulator - gate level 

90.  lspcad10.zip 649k LspCAD Lite for Windows speaker design program

91.  mathpad.zip 63k Powerful scientific calculator

92.  Maxim Designs microprocessor based filters.

93.  MC6801 Integrated Circuit Emulator Hardware and firmware design utility for the 6801. Built in assembler, single step execution, realtime emulation, and more.

94.  MICECAT A catalog of most of HP's components, including their new 50 GHz MMIC Chips.

95.  MICROCAP A utility to aid in the selection of resistors in circuits.

96.  MIMP Motorolla impedance matching program

97.  Module A program for designing analog filters and equalizers.

98.  Nat. Electric Code [1/2] Data from the Nat'l Electric Code 1984. Data is appendable as necessary. Dump all your data sheets and NEC tables. Part 1 of 2.

99.  NEC [2/2] Part 2 of 2.

100.  Network v1.0 Electronic network analysis for AC input.

101.  Nova AC linear circuit analysis program. Calculates voltage, phase, and delay at any node. Can handle high frequencies.

102.  Ohm's Law Ohms Law calculator for engineers.

103.  packcom.zip 50k Packet radio terminal program 

104.  Pads PC Board Design Utilities: Includes autorouter, and more

105.  PADS-PCB [1/3] Powerful PC Board drafting and routing package. Part 1 of 3.

106.  PADS-PCB [2/3] Part 2 of 3.

107.  PADS-PCB [3/3] Part 3 of 3.

108.  PC Silos Digital logic simulation package.

109.  PC Trace v5.1 Printed Circuit CAD system. Includes sample schematics. Can also capture schematics from text.

110.  PC-Breeze II Creates, views, modify, and output printed circuit boards

111.  PC-BREZE v2.10 A simple PC Board layout utility.

112.  PC-ECAP AC Circuit Analysis

113.  PC-ECAP Electronic nodal solver

114.  PC-Schematic Create schematics and printed circuit board artwork

115.  PCT Resistor Calculates the best fit standard 1% resistors for a 2 resistor voltage divider.

116.  pfwdemo1.zip 792k Protel PCB for Windows Demo - 1 (can't save)

117.  pfwdemo2.zip 707k Protel PCB for Windows Demo - 2 (can't save)

118.  pk232com.zip 67k Packet radio TNC controller

119.  PLL A phase lock loop design program.

120.  poc32v19.zip 122k Transceiver software for decoding CCIR radio pagers

121.  Power 1.00 Calculates required power in IC circuit design.

122.  Protel Advanced Schematic Windows schematic capture system. Fully hierarchical design entry system.

123.  Protel PCB [1/2] A PC board designer and auto-router for Windows. Supports multiple layered boards.

124.  Protel PCB [2/2] Part 2 of 2.

125.  PSpice v5.0a [1/3] A fast and feature-packed electrical circuit simulator and logic analyzer. Part 1 of 3.

126.  PSpice v5.0a [2/3] Part 2 of 3.

127.  PSpice v5.0a [3/3] Part 3 of 3.

128.  Pspice v5.3 [1/2] Pspice circuit analysis utility for Windows. 50 node evaluation version. For Windows.

129.  Pspice v5.3 [2/2] Part two of Pspice for Windows.

130.  Quick Route v1.5 release 3.0 A high quality and high speed PC Board and schematic design system.

131.  Quick Router A router and analysis utility

132.  QuickRoute for DOS A simple Printed Circuit Board Design program. It is best suited for small, quick tasks.

133.  rcsezy.inf 2k Readme file for RCSEZYx and 3993S files

134.  rcsezy1.zip 60k RCS improved Easy/Autotrax library -see RCSEZY.INF

135.  rcsezy2.zip 87k Another Easy/Autotrax lib from RCS -see RCSEZY.INF

136.  rcstoolf.zip 10k Drill tool table for Easy/Autotrax from RCS + docs

137.  Resistor Codes A Windows program for decoding the values of resistors from their color bands.

138.  Resistor v1.1 Finds the two best values of standard 1% resistors to use in a simple two resistor voltage divider.

139.  resistor.zip 122k Graphical resistor colour code converter 

140.  Rf Tools Design tools for RF devices & filters

141.  rfeng.zip 98k RF design software (includes Smith chart) 

142.  rfmatch6.zip 81k RF match calculator and optimiser for Hams 

143.  RFS Series/parallel resistors, capacitors, and inductors, R/C R/L time constants, L/R/C circuits, voltage divider circuits, & more.

144.  rftools.zip 95k RF and Microwave engineering calculator

145.  Schematic Designer All-purpose schematic CAD program

146.  Semiconductor Cross v1.0 A program to suggest substitutes for spec'd transistors, ICs, diodes, SCRs, triacs, diacs, and others. Money and time saving.

147.  SIMIC A logic verification simulator. Faster and more accurate than most other simulators.
148.  Skem v1.0 A schematic drawing system. Allows you to easily and quickly draw and print professional looking schematics.

149.  smith.ps 23k Smith Chart (blank) in PostScript file form 

150.  spkrwork.zip 1581k Soundcard-based speaker testing software

151.  Super Steckerbelegungs-Collection (Cable and Plug Pinouts): Video,Modem, Nullmodem/ser. Drucker, Adapter/Pruefstecker/spezielles (seriell), Parallel, Parallel Rechner-Rechner, Twisted Pair/Arcnet/Ethernet, SCSI,PC-Keyboard/Monitor/Maus/Joystick, Midi, Audio, Telefon, ISDN...

152.  switchrs.zip 127k Switchers Made Simple software (EWE Jan 95)

153.  Tango v2.0 A PCB Design and AutoRouter program. Supports multi-layer boards, many components, and more.

154.  Tango-Schematic Evaluator Circuit evaluation through schematics

155.  tdb3.zip 25k Valve substitute/cross-reference database program

156.  testcard.zip 88k Generates a standard test pattern on your monitor.

157.  The Digital Architect A digital circuit simulator. Supports mixed logic signals, schematic capture & printing, object-oriented design, and more.

158.  tsd.zip 14k Transistor substitute/cross-reference database prg

159.  TSHOOT A simulation of a two stage audio amplifier.

160.  USPI [1/3] A 32 bit Windows version of Spice and Nutmeg, a set of circuit simulation tools.
161.  USPI [2/3] Part 2 of 3.

162.  USPI [3/3] Part 3 of 3.

163.  W1RIL A collection of electronic symbols in .PCX format, readable by many packages.

164.  Windows OP-Amp OP-Amp simulator for Windows