Circuit Design

Electronic circuit design and misc. calculators

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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
  • 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.
  • 5Spice
    Analog circuit simulation program for the typical circuit designer. Commercial version for windows
  • 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.
  • 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.
  • LCF Calculator
    LCF online Calculator, calculate relation between Frequency Capacitance Inductance and Reactance
  • 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.
  • 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.
  • Mini Ring Core Calculator
    The easy way to calculate toroid cores.

  • Coil32

    • Coil32 is a free coil inductance calculator that allows to calculate single layer and multi ...
    By: Valery Hits: 1584 | Votes: 6 | Rating: 7

  • TANKIT

    • A free design aid for vacuum tube linear RF power amplifiers Determine plate circuit operating ...
    By: Keith Kunde, K8KK Hits: 1948 | Votes: 3 | Rating: 10

  • 5Spice

    • Analog circuit simulation program for the typical circuit designer. Commercial version for windows
    Hits: 5563 | Votes: 8 | Rating: 7.5

  • AA3RL Transmission Line Calculator

    • Excel spreasheet that calculate virtually every transmission line parameter that one may need Include Length ...
    Hits: 5357 | Votes: 16 | Rating: 6.88

  • Amidon ferrite toroids calculator

    • Select the toroid by material type and dimension of the toroid the desired inductance and ...
    By: coil32 Hits: 412 | Votes: 4 | Rating: 5.5

  • DesignSpark - RS Online

    • DesignSpark PCB is a free PCB design tool by rs online designed to help the ...
    By: RS Online Hits: 75

  • DesignSpark PCB

    • DesignSpark PCB is the world s most accessible electronics design software specially designed for Rapid ...
    Hits: 528

  • DSPRX

    • Signalprocessing for SSB Direct Conversion Receiver using Phasemethod for Sideband Supression does all necessary signalprocessing ...
    Hits: 2489

  • EasyEDA

    • EasyEDA - Web-Based EDA, schematic capture, spice circuit simulation and PCB layout Online.
    Hits: 516 | Votes: 2 | Rating: 10

  • Elsie - Filter Design

    • Filter design software Elsie is an uncommon commercial grade lumped element L C electrical filter ...
    Hits: 2985 | Votes: 7 | Rating: 8.71

  • ERP Estimator

    • Calculate online ERP in dB and dBi given PWR Frequency Coax lenght and type and ...
    Hits: 1669 | Votes: 5 | Rating: 3.8

  • EvoSpice

    • A numerical optimizer solver for LTSpice IV Uses a fast evolutionary algorithm You can use ...
    By: Sean O'Connor Hits: 574

  • ExpressPCB

    • Free PCB software is a snap to learn and use For the first time designing ...
    Hits: 2417 | Votes: 5 | Rating: 5.4

  • FreePCB

    • FreePCB is a free open source PCB editor for Microsoft Windows released under the GNU ...
    By: FreePCB Hits: 158 | Votes: 1 | Rating: 5

  • Fritzing

    • Fritzing is for amateur circuit designers enthusiasts and hobbyists to build their own design and ...
    By: Fritzing Hits: 131 | Votes: 1 | Rating: 9

  • HamCalc v1.3   pop

    • HamCalc is a free collection of calculators for radio amateurs include Antenna ERP calculations Attenuators ...
    Hits: 29030 | Votes: 116 | Rating: 5.65

  • Helical

    • A graphics-intensive bandpass filter program based on the helical resonator.
    Hits: 1890 | Votes: 2 | Rating: 9

  • IC-Prog Prototype Programmer

    • PIC Programmer software package that allows you to program all types of serial programmable Integrated ...
    Hits: 1221 | Votes: 5 | Rating: 5

  • idealCircuit

    • IdealCircuit is an analog circuit simulator working with true ideal components It uses exactly the ...
    By: Alexei Smirnov Hits: 466

  • Integrated Engineering Software

    • Electromagnetic CAE simulation software for modeling and analysis. RF, Microwave & Antennas
    Hits: 1689 | Votes: 4 | Rating: 8.75

  • KiCad EDA

    • A Cross Platform and Open Source Electronics Design Automation Suite that runs on multiple operative ...
    By: KiCad Hits: 89

  • LCF Calculator

    • LCF online Calculator, calculate relation between Frequency Capacitance Inductance and Reactance
    Hits: 2694 | Votes: 35 | Rating: 3.86

  • linSmith - Smith chart utlity

    • A Smith charting program You can enter either discrete components or transmission lines see the ...
    By: John Coppens Hits: 1375 | Votes: 1 | Rating: 10

  • Marki RF Tools Calculators

    • Set of online calculators provided my Marki includes a LC Filter Design Tool Microstrip Filter ...
    By: Marki Microwave Hits: 44

  • Meter

    • This meter scale drawing program is designed to have a computer do the hard work ...
    Hits: 4247 | Votes: 5 | Rating: 6.6

  • NetCon

    • A netlist converter for moving schematic and PC board files from OrCAD PADS to ExpressPCB ...
    Hits: 382 | Votes: 1 | Rating: 4

  • NFM - noise figure measurement

    • NFM for Noise Figure Meter is a software application to assist Noise Figure measurement NFM ...
    Hits: 406 | Votes: 4 | Rating: 7.75

  • NL5 Circuit Simulator

    • Analog circuit simulator for Windows not a SPICE A great tool for students amateurs as ...
    By: Alexei Smirnov Hits: 1706

  • Number One Systems

    • Professional ready-to-use PCB design product.
    Hits: 731 | Votes: 2 | Rating: 5.5

  • Online Helical Coil Calculator

    • This online calculator will give as output the Inductance L of a coil including the ...
    By: deepfriedneon Hits: 361 | Votes: 8 | Rating: 6.25

  • Osmond PCB

    • Printed circuit board design for Macintosh
    Hits: 401

  • PCB gEDA

    • PCB is an interactive printed circuit board editor for Unix Linux Windows and Mac systems ...
    By: gEDA Hits: 108

  • Quad - from Tonne Software

    • This graphics intensive program designs and analyzes active quadrature 90 degree networks for use in ...
    Hits: 887 | Votes: 1 | Rating: 10

  • Resistor Color Code Calculator

    • Calculate the value of an unknown resistor with this free program for windows
    By: Resistor Hits: 775 | Votes: 21 | Rating: 4.85

  • Resistor Finder

    • Resistor Finder is a program that allows the electronics designer or hobbyist to find a ...
    Hits: 1196 | Votes: 7 | Rating: 3

  • Resonant Frequency Calculator

    • This web based application will compute circuit values required for an L C circuit to ...
    Hits: 1784 | Votes: 8 | Rating: 5.12

  • RF Calculators

    • A collection of calculators from everything RF for various applications VSWR attenuator resistance valies microstrip ...
    By: Raghav Kapur Hits: 580 | Votes: 2 | Rating: 1

  • RF Inductor Calculator

    • This air core solenoid style RF inductor calculator calculates the inductance wire size number of ...
    By: vk3cpu Hits: 110 | Votes: 3 | Rating: 7

  • Scheme-it

    • Scheme it is an online schematic and diagramming tool that allows you to create and ...
    Hits: 426 | Votes: 1 | Rating: 2

  • Sunstone PCB Design Software

    • Sunstone com PCB123 PCB download software Review Sunstone quality pcb design software Free PCB software ...
    By: Paul Waterman Hits: 855 | Votes: 1 | Rating: 6

  • SVC Filter

    • Filter design software A program designed to expedite the design and analysis of lowpass and ...
    Hits: 1195 | Votes: 1 | Rating: 10

  • Thevenin equivalent calculator

    • The Thevenin equivalent simplifies a complex circuit into an equivalent circuit with a voltage source ...
    By: PA2OHH Hits: 61

  • TinyCAD

    • TinyCAD is a an open source program for drawing circuit diagrams which runs under Windows ...
    By: TinyCAD Hits: 138 | Votes: 1 | Rating: 10

  • Tunekit

    • Filter Tuning Kit for Windows is a electronic filter synthesis program and a practical filter ...
    By: Tunekit Hits: 4830 | Votes: 10 | Rating: 5.2

  • Vacuum Tube Software

    • The VTDATA software package is a complete vacuum tube manual on your computer It has ...
    Hits: 10411 | Votes: 24 | Rating: 3.67

  • ViPEC Network Analyzer

    • This program intended for electronic circuit analysis mainly for Linux ViPEC is a powerful tool ...
    Hits: 1197

  • ZenitPCB

    • An excellent tool to create design printed circuit boards in a simple and easy to ...
    By: ZenitPCB Hits: 149 | Votes: 1 | Rating: 8
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