Home : Software : Circuit Design
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    • HamCalc v1.3
      HamCalc is a free collection of calculators for radio amateurs include Antenna ERP calculations, Attenuators, Audio Filter design, Coil Winding, Decibels, Great Circles map and calculator, HF Filters, HF Traps, Metric conversions OP Amps QRA Locator to Latitude/Longitude, Radio Horizon calculator, Resonance Satellite orbit calculator Timer calculations (555 timer)Zener Diode calculations Download zip By G4VWL
    • Electronics Toolkit
      Solve electrical and electronics equations quickly and easily with the Electronics Toolkit
    • Vacuum Tube Software
      The VTDATA software package is a complete vacuum tube manual on your computer. It has all the information you'd expect in a tube manual. VTDATA's database also includes vacuum tubes of historical interest, such as the early "two digit" types (45, 80, etc.) and hi-fi audio types.
    • Inductor Design Software - RF toroid
      A free too designed to assist in the selection of iron and alloy powder cores. RF toroid calculate the location of the Self resonate frequencies for series and shunt inductors.
    • 5Spice
      Analog circuit simulation program for the typical circuit designer. Commercial version for windows
    • WINRLC
      Simple freeware tool to calculate several kinds of HF filters. Use to calculate L-C and R-C band filters and bandpasses, L-C, L-R and R-C highpasses and lowpasses, coils and capacitors.
    • AA3RL Transmission Line Calculator
      Excel spreasheet that calculate virtually every transmission line parameter that one may need. Include Length conversions, Reactance and Length of Stubs
    • Tunekit
      Filter Tuning Kit for Windows is a electronic filter synthesis program and a practical filter tuning aid for actually designing and building a working filter
    • Meter
      This meter scale drawing program is designed to have a computer do the hard work in making a precision scale for a d'Arsonval analog meter. The resulting scales will typically be nicer-looking than those found on many commercial meters.
    • DesignWorks
      Commercia, productive and easy-to-use electronic circuit schematic drawing tool Featuring full hierarchical design, standard and custom netlist formats, extensive symbol libraries, scripting and customization features and much more.
    • JavaScript Electronic Notebook, K7MEM
      It consists of a group of JavaScript driven web pages that are intended for use as a quick reference for Ham Radio operators or just anyone interested in electronics. Offer calculators for Resistors, capacitors, inductors, power supplies, filters, attenuators and antennas
    • Elsie - Filter Design
      Filter design software. Elsie is an uncommon commercial-grade lumped-element ("L-C") electrical filter design and network analysis program, directed toward the engineer or technician involved in that line of work.
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    • 5Spice - Analog circuit simulation program for the typical circuit designer. Commercial version for windows
      [ Hits: 5253 | Votes: 8 | Rating: 7.50 ]
    • AA3RL Transmission Line Calculator - Excel spreasheet that calculate virtually every transmission line parameter that one may need. Include Length conversions, Reactance and Length of Stubs
      [ Hits: 4948 | Votes: 15 | Rating: 6.67 ]
    • Ansoft Designer - Sesign-management environment and circuit simulator for radio frequency (RF) and microwave hardware development
      [ Hits: 876 | Votes: 4 | Rating: 2.75 ]
    • atlc - Arbitrary Transmission Line Calculator. - Unix or linux programme atlc calculates the impedance of electrical transmission lines of totally arbitrary cross section.
      [ Hits: 1256 | Votes: 9 | Rating: 6.44 ]
    • Beechhurst Electronic Design Solution - Complete software design suite DVD. From schematic to Gerber files for PCB vendors.
      [ Hits: 566 | Votes: 1 | Rating: 1.00 ]
    • Bobcalc 2.0 Air Coil Calculator - Bobcalc is a simple windows software to calculate the air core coils, the most widely used in RF circuits and may use the software to determine the data to build a coil, knowing that the inductance of this coil.
      [ Hits: 83 | Votes: 0 | Rating: 0.00 ]
    • Capacitor kVAr calculator - Online calculator to determine the Capacitor kVAr required to improve the power factor from cos 01 to cos 02 with your present kW load
      [ Hits: 1244 | Votes: 46 | Rating: 5.02 ]
    • Circuit Lab - Online circuit simulation - A browser based circuit simulator offering a large set of functionalities allowing to share and discuss designs
      [ Hits: 314 | Votes: 1 | Rating: 5.00 ]
    • Coil Inductance Calculator - Approximate Air Coil Inductance Calculator
      [ Hits: 2137 | Votes: 8 | Rating: 4.37 ]
    • Coil32 - Coil32 is a free coil inductance calculator, that allows to calculate: single layer and multi layer air core coils, toroidal air core coils, inductors on ferrite rings, in pot core, flat coils on the PCB, and also LC resonance parameters. The program have additional plugins to calculate another kinds of coils. The application is free for usage and distributing.
      [ Hits: 1266 | Votes: 4 | Rating: 5.50 ]
    • DesignSpark PCB - DesignSpark PCB is the world's most accessible electronics design software, specially designed for Rapid Prototyping and turning your circuit ideas into testable boards faster. Easy to learn and easy to use, DesignSpark PCB is free and can you can download DesignSpark from this site.
      [ Hits: 352 | Votes: 0 | Rating: 0.00 ]
    • DesignWorks - Commercia, productive and easy-to-use electronic circuit schematic drawing tool Featuring full hierarchical design, standard and custom netlist formats, extensive symbol libraries, scripting and customization features and much more.
      [ Hits: 3188 | Votes: 5 | Rating: 4.80 ]
    • DSPRX - Signalprocessing for SSB - Direct Conversion Receiver using Phasemethod for Sideband Supression, does all necessary signalprocessing for Direct conversion Receivers using IQ-mixer for demodulation.
      [ Hits: 2250 | Votes: 0 | Rating: 0.00 ]
    • EasyEDA - EasyEDA - Web-Based EDA, schematic capture, spice circuit simulation and PCB layout Online.
      [ Hits: 354 | Votes: 2 | Rating: 10.00 ]
    • Ekalk online calculators - Set of useful interactive calculators for electronics constructors and hams
      [ Hits: 412 | Votes: 8 | Rating: 8.50 ]
    • Electronics Toolkit - Solve electrical and electronics equations quickly and easily with the Electronics Toolkit
      [ Hits: 9661 | Votes: 27 | Rating: 5.33 ]
    • Elise Software Corporation - Elise Software, OUTPUTMASTER, windows professional software for Printed circuit board, post processor, Gerbers, Drill files, ODB++, files generated fast and simply.
      [ Hits: 422 | Votes: 0 | Rating: 0.00 ]
    • Elsie - Filter Design - Filter design software. Elsie is an uncommon commercial-grade lumped-element ("L-C") electrical filter design and network analysis program, directed toward the engineer or technician involved in that line of work.
      [ Hits: 2434 | Votes: 5 | Rating: 8.20 ]
    • ERP Estimator - Calculate online, ERP in dB and dBi given PWR Frequency Coax lenght and type and antenna type
      [ Hits: 1534 | Votes: 5 | Rating: 3.80 ]
    • EvoSpice - A numerical optimizer (solver) for LTSpice IV. Uses a fast evolutionary algorithm. You can use EvoSpice to design high efficiency power supplies, audio filters, low noise RF amplifiers and an endless list of other applications
      [ Hits: 378 | Votes: 0 | Rating: 0.00 ]
    • ExpressPCB - Free PCB software is a snap to learn and use. For the first time, designing circuit boards is simple for the beginner and efficient for the professional.
      [ Hits: 2181 | Votes: 5 | Rating: 5.40 ]
    • Finite difference program - This software is able to calculate the properties of odd shaped transmission lines. Particularly good in valve amplifier design, for aiding the design of transmission line resonators.
      [ Hits: 848 | Votes: 3 | Rating: 7.00 ]
    • HamCalc v1.3  pop - HamCalc is a free collection of calculators for radio amateurs include Antenna ERP calculations, Attenuators, Audio Filter design, Coil Winding, Decibels, Great Circles map and calculator, HF Filters, HF Traps, Metric conversions OP Amps QRA Locator to Latitude/Longitude, Radio Horizon calculator, Resonance Satellite orbit calculator Timer calculations (555 timer)Zener Diode calculations Download zip By G4VWL
      [ Hits: 25726 | Votes: 94 | Rating: 5.33 ]
    • Helical - A graphics-intensive bandpass filter program based on the helical resonator.
      [ Hits: 1711 | Votes: 2 | Rating: 9.00 ]
    • HeliCoil - Inductance calculation for single layer, air-wounded coils and helixes up to about 800 MHz. Inductance calculations accuracy is around 1%. Also, coils with maximum Q for given inductance, resonant RF chokes, PI and T resistive attenuators calculations are provided. Skin effects, radiation losses and other minor side effects are not accounted in maksimum Q factor coils calculations. Program assumes using copper (Cu) enameled or silver (Ag) plated wire. Program is writen bilingual in English and Serbian by YU1AW
      [ Hits: 1850 | Votes: 8 | Rating: 4.88 ]
    • IC-Prog Prototype Programmer - PIC Programmer software package that allows you to program all types of serial programmable Integrated Circuits using Windows 95/98/NT/2000/ME/XP
      [ Hits: 1075 | Votes: 5 | Rating: 5.00 ]
    • idealCircuit - IdealCircuit is an analog circuit simulator working with true ideal components. It uses exactly the same unique and robust algorithm as NL5 Circuit Simulator. Simple and intuitive interface, fewer components and models, no fancy and powerful features that are only useful for specialized applications.
      [ Hits: 335 | Votes: 0 | Rating: 0.00 ]
    • Inductor Design Software - RF toroid - A free too designed to assist in the selection of iron and alloy powder cores. RF toroid calculate the location of the Self resonate frequencies for series and shunt inductors.
      [ Hits: 5266 | Votes: 43 | Rating: 4.58 ]
    • Integrated Engineering Software - Electromagnetic CAE simulation software for modeling and analysis. RF, Microwave & Antennas
      [ Hits: 1504 | Votes: 4 | Rating: 8.75 ]
    • JavaScript Electronic Notebook, K7MEM - It consists of a group of JavaScript driven web pages that are intended for use as a quick reference for Ham Radio operators or just anyone interested in electronics. Offer calculators for Resistors, capacitors, inductors, power supplies, filters, attenuators and antennas
      [ Hits: 2936 | Votes: 14 | Rating: 7.99 ]
    • Labcenter Electronics - Professional electronics cad (schematic, simulation and pcb autorouting) software.
      [ Hits: 1387 | Votes: 1 | Rating: 5.00 ]
    • LCF Calculator - LCF online Calculator, calculate relation between Frequency Capacitance Inductance and Reactance
      [ Hits: 2314 | Votes: 31 | Rating: 3.87 ]
    • linSmith - Smith chart utlity - A Smith charting program. You can enter either discrete components or transmission lines, see the results on screen and/or generate Postscript output. Component values can be changed numerically or using scrollbars.
      [ Hits: 1158 | Votes: 1 | Rating: 10.00 ]
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