A reel of wire from Maplin etc and some ferrite rod salvaged from the junk box. Conductor skin depth This version uses the IPC-2221 formula for finding conductor current vs. temperature rise. Added T pad calculator. Updated Tab controls in programs, Changed GUI to consolidate options PCB Layout for the Ethernet PHY Interface, Updated current capacity formulas per the new IPC-2152 specification, Invalid floating point in Impedances tool fixed, Updated wire chart, added resistance, max amps, Added Power Delivery Network Impedance calculator, PCB Thickness now included in current capacity. What guage of wire do you recommend for the antenna given that it has about 35 of coax hanging off it near the middle? Please note that when using the IPC-2152 with modifiers option, the amperage value has a slight drop at 10,20,30,40,50,60,70,80,90,100,200,300,400,500,600 & 700sqmils. The time constant, abbreviated T or (tau) is the most common way of characterizing an RC circuits charge and discharge curves. Corrected the embedded differential pair calculator. Corrected conductor current value bug where options setting did not reset parallel conductors selection when IPC-2152 without modifiers or IPC-2221A were selected. Changed edit box code to remove annoying beep when pressing enter. Air Core Inductor Coil Inductance Calculator, AWG (American Wire Gauge) Diameter and Resistance Chart, Capacitor-Energy-Time-Constant-Calculator, Series - Parallel Impedance Conversion Calculator, BJT Transistor as a Switch, Saturation Calculator, How to wire an LED, Tutorial and Resistor Calculator, NE555 Astable Multivibrator (Oscillator) Frequency and Duty Cycle Calculator, Op-Amp (Non-Inverting) Resistor-Calculator, Flyback Transformer Design and Calculator, Inductor Current and Maximum Power Calculator, Inrush Current Limiting Load Switch Calculator, Voltage Regulator Resistor Divider Calculator, Complete RF Amplifier Design and Analysis Calculator, Quarter Wavelength Transformer Calculator, GCode-Tool Path Generator for Milling Circles, G-Code Tool Path Generator for Drilling Holes, GCode-Tool Path Generator for Milling Inner of Rectangles, GCode Tool Path Generator for Planing Stock with Fly Cutter, GCode Tool Path Generator for Series of Points, GCode Tool Path Generator for Trimming End Stock, Polar / Rectangular Coordinate Conversion Calculator, Exponentially Decaying Wave Lookup Table Generator Calculator, Triangle Wave Lookup Table Generator Calculator. (B2) Seperated fusing current from conductor properties calculator. Via DC resistance WebAnswer (1 of 3): If you have an LED that pulls 250 mA at 3.6 volts and you want to power it with a 9 volt battery, this is how to calculate the value of the resistor you will need to limit the current. In series means the current passes through the coil one after the other. Removed installer background to reduce file size. The line isolator stops the vertical radiator radiating all the way back to the shack. getting started in the world of electronics. Edge coupled differential pair Added voltage drop to the Via Calculator. The colour bands will be displayed below on the image of the inductor. Changed the planar inductor images to better match the IEEE datasheet. The antenna just fits in the garden, from roof peak to a pole at bottom of the garden. Birds keep their feet warm in the winter months! Added degree symbols Web1 mH = 0.001 H. 1 H = 0.000001 = 10 H. 1 nH = 0.000000001 = 10 H. 1 pH = 0.000000000001 = 10 H. See our Inductance Calculator.. Other conductor properties include: f is the frequency in hertz (Hz), . Fixed the installer license issue. To use this calculator, all a user must do is enter in any 2 values, and the calculator will compute the third field. Talking about pre WARC, havent investigated them yet. WebThe resistor color code calculator makes it easy to identify and select resistance and tolerance values for 4, 5, Transformer, Inductor Components. The resistor. Want to suggest a link to add here, exchange links with us or get a banner for your website?Click here for details. can be calculated for E6 to E192 series, and calculation results can be printed or saved. Corrected DC resistance error in metric mode. Corrected a /1000 error in the Signal Calculator for Inches. Microstrip Includes guides on tools, soldering, choosing & constructing a kit, This is due to the multiplier used for each cross sectional area range. Not sure where to start? Added imperial units to the minimum conductor spacing calculator. Added series / parallel inductor calculator to the ohms law tab. Added round, square, hexagonal & octagonal planar inductors. If you are using a calculator that has the ability to perform complex arithmetic without the need for conversion between rectangular and polar forms, then this extra documentation is completely unnecessary. Corrected copper plane thickness index when switching between imperial and metric units. Version 8.04 Updates & Additions: Changed all forms to open on screen center. energy, max. Added Via Thermal Resistance output to Via Properties. Added drill sizes to chart. Conductor to BGA land calculator to determine maximum trace width for BGA breakout. Please check back often, this program is updated often per customer requests. Dual stripline Added series / parallel inductor calculator to the ohms law tab. Added corner to corner measurement to Padstack Calculator. Changed the default substrate back to FR-4. Changed planar inductor calc to modified Wheeler formula. Version 6.82 Updates & Additions: Changed the microstrip impedance calculator formula to a complex version for accuracy. 10 turns RG8 on a half inch ferrite rod. Added rounding to all numerical edit boxes Program run under the latest compiler. Try to get the ends off the ground as much as possible. Added a Maximum Pad Diameter calculator in the Padstack Calculator tab. To convert from colours to value: Use something thick enough to take the tension. If you are not yet familiar with the IPC-2152 then please be aware that there are two separate charts for finding conductor current vs. temperature rise. Edge coupled internal symmetric differential pair The inductance for a rectangular cross section toroid can be found from the following equation (Terman, Frederick E., Radio Engineers Handbook, McGraw-Hill, New York, 1943, p58. Disabled the crosstalk calculator A separate code, the 25-pair color code, is used to identify wires in some telecommunications cables. Corrected Microstrip / Stripline plating option error WebAdded series / parallel capacitor calculator to the ohms law tab. Added more functionality to the Maximum Pad Diameter calculator in the Padstack Calculator tab. The surface mount resistor code calculator can be used to determine the resistance value of an SMD resistor using the markings found on the device. This is the same design as the Carolina Windom 80 Special You can buy one of these for 109.95 but this cost nothing like that! Added Polar / Rectangular converter to Conversion Data. Fixed drill chart text wrap error. Added crosstalk in the differential pairs calculator. Calculates the bandwidth of a digital signal and maximum trace length, using the IPC-2251 method or the If you need a non-standard resistor value you could probably realize a close match using two resistor. Skin depth WebAn inductor, also called a coil, choke, or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it. It incorporates many features that PCB designers and engineers are in regular need of like current capacity of a PCB trace, via current, differential pairs and much more. Air Core Inductor Coil Inductance Calculator; AWG (American Wire Gauge) Diameter and Resistance Chart = 0 if 1/2fC = 2fL. [Soil Moisture Sensor] WebA low pass RL filter, again, is a filter circuit composed of a resistor and inductor which passes through low-frequency signals, while blocking high-frequency signals. Added the option to disable Via Height for temperature rise calculations. Fixed copper weight not updating in Dual Stripline calculator. Scroll down to see the Product Revision Notes. Updated formulas for all of the conductor impedance models. And cheap. Changed the Dual Stripline graphic. Implementing the new IPC-2152 has been no easy task since no new formulas were produced in the document. Fixed Plane Present tooltip typo. Added embedded resistors tab. Fixed spelling errors in the padstack calculator Compiled program with the latest version compiler. (Still work in progress, more to come on this). WebThe electrical resistance of an object is a measure of its opposition to the flow of electric current.Its reciprocal quantity is electrical conductance, measuring the ease with which an electric current passes.Electrical resistance shares some conceptual parallels with mechanical friction.The SI unit of electrical resistance is the ohm (), while electrical where N is the number of turns, D is the mean diameter of the form as shown in the figure (in inches), and d is the diameter of the windings as shown in the figure (in inches). Program run under the latest compiler. V6.7 uses a new installer, please manually uninstall any previous version. The line isolator. Functionally the same as the series 5 as related to the IPC-2152. Added YouTube icons for future training and help videos. (50 to 200). per IPC-2152. A second formula for a rectangular form toroid is shown below: Alternate Equation for a Square Cross Section Toroid Inductor. Different codes are used for wire Fixed Edge Coupled Int Asym diff pair calc. Fixed a few issues with comma use as the decimal point. We feel that all values in the version 5 series are within +/-10 of measured values plotted on the charts. WebElectrical, RF and Electronics Calculators. Added dB gain to Conversion Data tab. Changed Invalid Input to Warning. General cleanup of text and panels. Display issues solved! Your email address will not be published. Minor dialog box cleanup. From Kirchhoff's voltage law, the sum of the voltage drops must equal the total voltage V T.Resistor and capacitor voltages V R and V C are 90 out frequency domain method, for transmission line effects. The angular frequency is also determined. WebMagnetics - Transformer, Inductor Components. Rewrote the PDN Impedance calculator, old formula was too confusing. troubleshooting and more. Complied under the latest toolset. Corrected Mechanical info, amperage labels were reversed. Was working on a new formula for the beta and forgot to take it out. Changed PCB Toolkit icon. Fixed the clock display issue in the status bar. The Saturn PCB Toolkit is the best freeware resource for PCB related calculations you can find. Added more clarity to the wire gauge chart boxes. [Water Level Sensor] Fixed an invalid floating point error when Er = 1 in the Er Effective calculator. Corrected copper weight issue in the Impedances program for metric stripline. Getting back on the air researched several wires which would fit my garden, tried a home-brew Carolina Windom and hey presto its a gem on all bands but Top Band. WebIn a series RC circuit, the same current I flows through both the capacitor and the resistor. Added resistor divider calculator. Updated Saturn PCB Design Presentation to Rev. Added a number of new PCB substrates to the materials selection. Version 4 series is accurate to the IPC-2152 but may be too conservative in many cases. Corrected S/H and W/H formula for the Edge Coupled Embedded differential pair calculator. Calculates minimum conductor spacings using peak AC or DC voltage based on IPC-2221A data. where N is the number of turns, h is the height of the winding (in cm), r1 is the inner radius (in cm), and r2 is the outer radius (in cm). Added new social media icons. Changed default values for planar inductor calculator This version uses the IPC-2152 conservative chart for finding conductor current vs. temperature rise and also adds the ability to include other PCB parameters that can affect temperature rise (like PCB thickness and plane usage). Toroids may be wound on a circular form as shown in the figure below: Diagram of a Circular Cross Section Toroid Inductor. Added a conductor crosstalk calculator. Added dual monitor support for dialog boxes Increased maximum conductor length in the Conductor Properties tab to 1,200,000mils. Added option to select between default asymmetrical stripline formula and the IPC and Wadell formulas. Circular planar inductor. Program now retains copper weight settings within runtime. Figure 3 shows a simple high pass RL filter circuit consisting of a resistor (R R R) and inductor (L L L). Its a real peach on 40m. It forms a low pass filter because of the reactive properties of an inductor. This version uses the IPC-2152 conservative chart for finding conductor current vs. temperature rise. = 90 if 1/2fC > 2fL. Calculates the target impedance of a PDN. Added groupboxs for all frequency inputs. The 10 feet vertical radiator really does radiate, and offers vertical radiation to the existing horizontal radiation, and therefore adds to the low angle omnidirectonal radiation. The capacitors voltage V C lags the common current by 90 and the resistor voltage is in phase with the common current. Corrected comma as dp issues Another formula for the inductance of a circular cross section toroid is shown below: Alternate Formula for Circular Cross Section Toroid Inductor. This circuit only allows high-frequency signals to pass through. Back Bobbins (Coil Formers), Mounts, Hardware; Ferrite Cores; Magnetic Wire; R total = The total equivalent parallel resistance of the resistor array across the current source. Links to more software can be found here. where N is the number of turns, h is the height of the winding (in inches), d1 is the inner diameter (in inches), and d2 is the outer diameter (in inches). Preferred resistor & capacitor values Does not apply to V8.0 or higher: You can use an antenna analyser to easily find if you are too long or short. Edge coupled embedded differential pair Uses Onderdonks equation to determine the fuse current of a conductor. Calculates the differential pair impedance of a balanced line. WebThis tool calculates the product of resistance and capacitance values, known as the RC time constant. Passive Component Properties. WebThe calculator will get you close (or spot on if youre lucky), but there are so many variables. Embedded microstrip An LC circuit contains only an inductor and a capacitor, in a parallel or series configuration: Dont know the maths or the theory, but this antenna works as well as a G5RV. Added a lookup table for the value of copper resistance over temperature for increased accuracy. Updated spacing chart to IPC-2221B. WARNING: This page requires JavaScript, which seems not to be activated in the browser you are currently using. Via step response Wavelength calculator = 2f is the angular frequency in rad/s, . 0 = resonance angular Need to verify formula, IPC uses a geometry independent formula. Back Bobbins (Coil Formers), Mounts, Hardware; Ferrite Cores; Magnetic Wire; 555 Timer Calculator; LED Series Resistor Calculator; WebThis inductor impedance calculator determines the reactance of an ideal inductor for a given frequency of a sinusoidal signal. Help keep the Saturn PCB Toolkit free by making an online donation today! Updated differential pair vias graphic. Changed the Corner to Corner calculator, added suggested drill sizes. Other via properties include: Required fields are marked *, Please complete some simple maths to prove you are a human! (B4) Corrected improper location of Invalid flag in coplanar waveguide calculator. Added insertion loss to the differential via calculator. Fixed Solve for Current vs. Changed the PDN Impedance tab to Plane Calculator. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses.High-power resistors that can dissipate many watts SMD Resistor Code Calculator; Voltage Divider Calculator; Three Phase Calculator; See All Calculators; Co-Browse. This has forced us to derive at our on formulas for current vs. temprise so please check back often for updates to this V5 beta program. All values are within +/-10% of the chart values however. The resistor must use the extra voltage.Subtract 3.6volts from 9volts. In order to understand the PCB Toolkit version differences, I have added this brief description of the version series. Added a differential via calculator to the Via Properties tab. This is definitely the next project. Version 6.85 Updates & Additions: Fixed spalshscreen issue. WebRC Time Constant Calculator. Via resonant frequency To create a low pass RL filter, the inductor is placed in series with the input signal and the resistor is placed in parallel to the input signal, such as shown in the circuit below: E. Added three different color themes in addition to the standard Windows color theme. Calculates the outer and inner layer diameters of a padstack given the drill size. Fixed Temprise C vs. F scale. Added broadside coupled differential pair support Conductor voltage drop Added a 2:1 option for etch factor. Hallo John, I built the antenna coupler for end fed with your project. Added indicator to show when differential impedance is within tolerance of a target impedance. The form will not work without Javascript enabled. You have 5.4 volts to b. Corrected target zdiff vs calculated zdiff with respect to the tolerance values. WebDIY Audio & Video Tutorials, FAQs, Calculators and Examples for Speaker Boxes, Crossovers, Filters, Wiring, Home Automation, Security & more units, series / parallel resistors & capacitors, frequency, reactance & more, Calculation of nearest preferred resistor values with a choice of 5 series from E12 to E192. Added ability to read in comma as a dp. Your email address will not be published. Added imperial units support to spiral inductor calculator C is the capacitance in farads (F),. Corrected cross sectional area computation error in the conductor calculator. Added coplanar waveguide support for conductor impedance If you are looking for the "non-ideal" circuit, head to our RLC circuit calculator!. [Plant Database], Conductor power dissipation Calculates wire diameter for a given AWG gauge. Added series / parallel capacitor calculator to the ohms law tab. Microstrip calculator || Stripline calculator || Differential pair calculator || Via current calculator || PCB trace current calculator || Planar inductor calculator || Padstack calculator || Crosstalk calculator || Ohms Law calculator || XC XL Reactance calculator || BGA Land calculator || Er Effective calculator || Wavelength calculator || PPM Calculator. Added Program Options menu item for manually entering copper weight Updated the Saturn PCB Presentation Fixed error in previous versions external conductor calculation, Added skin depth to the fusing current portion of the conductor calculator, Added skin depth to the conductor calculator, Increased Signal slider bar for wavelength to 1/20 Added protection against <501V on conductor spacing tab. Corrected the W/H and S/H error in the broadside differential pair calculator. Significantly changed how the program calculates amperage to better match the IPC-2152 charts. (Had beta formula still in code) Still a work in progess for this calc. Removed the notification area program icon and associated RMB menu. Fixed Temprise F scale when 0C is selected. Changed splash screen. Version4 series PCB Toolkit follows the new IPC-2152 chart as well but uses the general chart which can be too conservative in some applications. WebThe following formulas are used for the calculation: = 90 if 1/2fC < 2fL. Take a look at our beginners guide to I have even used it on 160m, but it isveryinefficient there. Reorganized all tabs and calculator menu items in alphabetical order. PIC controlled 500w Modified Sine Wave Inverter, dBm, dBW, W, mW, Watt, KW and MW Calculator, Loaded Quarter Wave Antenna Inductance Calculator, Parallel Resistor, Inductor or series capacitor calculator, Yaesu MH-31 Electret Condenser Mic Modification, MFJ-971 Portable Antenna Tuner Modifications, Manson SPS-9400 40A 3-15V Switchmode Power Supply, Useful information on Lead Acid Batteries, International Space Station NA1ISS contact with GB4YOTA, Building a 70MHz quarter wave ground plane, Receiving SSTV images from the ISS ARISS 20th Anniversary, Two years in the making 70MHz 300w Amplifier, Resonant Frequency Calculator Inductance Capacitance LC circuit. (B3) Fixed Er Eff decimal point issue. 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Many bug fixes and improvements. Via impedance Corrected minor image bug in the differential vias calculator. issue. Other minor fixes. This along with the Internal Symmetric Differential Pair formula and still under review and need to be changed but they are both within an acceptable tolerance now. Added Etch Factor note in Conductor Properties. Changed all forms to open on screen center. nine + = eleven. Added XC XL reactance calculator. Inductance characterizes the ability of an electrical conductor to convert changes in electric current into changes in electrical potential in both this conductor (self-inductance) and in any nearby conductors WebSeries resistor inductor circuit: Current lags applied voltage by 0o to 90o. Yaesu MH-31 Electret Condenser Mic Modification; MFJ-971 Portable Antenna Tuner Modifications; Icom IC-7200 SO-239 to N-Type Socket; Reviews. Drill chart with imperial and metric diameters. Added a menu item for the EULA. WebCalculators Index. Various bugfixes and enhancements. The IPC-2221 has been superseded by the IPC-2152 for finding conductor current vs. temperature rise and is now obsolete. The inductive reactance (i.e., the resistance offered by an inductor to the current flowing through it) is directly proportional to the frequency of the signal. BGA land calculator based on the IPC-7351A specification. Calculates the wavelength of a signal using Ereff. It is 17 bifilar turns on a half inch ferrite rod. Corrected a conversion issue in the asymmetrical stripline calculator when switching between metric and imperial units. Fixed Temprise & Ambient Temp enable / disable when Fuse current vs. Time mode selected after user exists Conductor Properties. Via thermal resistance Good luck! Octagonal planar inductor. Fixed text in BGA land diameter calculator, PCB design service and turnkey electronic engineering solutions, 60 Spring Vista Dr, Ste B, DeBary, FL 32713-3269. 2022 Saturn PCB Design, Inc. All rights reserved. The radiation pattern is improved if it is above 35 feet. Added Plane Capacitance calculator. Added notes next to H1 / H2 in asymmetric stripline calculator. Conductor to Pad calculator to determine maximum conductor width and pad diameter. Added a Saturn PCB Design, Inc. digital signature certificate to the program for security. Roblox *BEST* Exploit Executor | No Key System Download Exploit: gg.gg/exploit-nokey Roblox *BEST* Script Executor TUTORIAL | No Key System | Roblox Exploit *June 2022* Nova Z is the best free keyless exploit out there, it runs 99% of scripts and has its own unique custom DLL and it has a user friendly UI. No functional changes. Added plane selection in conductor calculator, Added more resolution to the PCB thickness input you can use Panda X, however i've have pretty bad experiences with it messing up my camera. You could, but it will affect performance. New icons for Facebook and LinkedIn pages. An LC circuit (also called a resonant circuit, tank circuit, or tuned circuit) is an idealized RLC circuit of zero resistance. Ideally, this antenna should be at least 35 feet above ground, but mine is currently about 25 feet, and still performs OK. 3. Changed a number of EditBox Hints. When the current flowing through the coil changes, the time-varying magnetic field induces an electromotive force Make sure they have 1 terminal touching. Please download our PCB Toolkit today for free and enjoy! ): Equation for a Square Cross Section Toroid Inductor. We have also been working on developing our own formulas for current to get as close as possible to the measured data charts of the IPC-2152. Fixed dropdown menu control vs. tab control Added period input to Wavelength calculator. Rectangular to Polar conversion. Rebuilt with the latest version compiler. They may also be wound on a rectangular form as shown in the figure below: Diagram of a Square Cross Section Toroid Inductor. Please note that the amperage value has a slight drop at 10,20,30,40,50,60,70,80,90,100,200,300,400,500,600 & 700sqmils. Corrected imperial values for Conductor Spacing calculator in B3 mode for 251-500V. Replaced cross sectional area multipliers with polynomials to reduce step errors. Changed GBaud/s to Gbaud in the Differential Vias tool. 50 200, 1-30MHz. Updated all frequency radio groups to include GHz. Added IPC versions to the Via Calculator in the options dialog box. WebCalculate the total series and parallel resistance of a circuit using DigiKey's Parallel and Series Resistor calculator. Here is my home HF antenna. There is no guarantee for any information on this website. Credit for the initial Javascript code used in the calculator is given to Ray Allen who has a number of similar useful calculators on his website, Pulsed Power Portal. Added frequency input to the Signal Calculator. Analyzer shows 1.1 SWR @ 50 to a 200 resistor from 1 through to 30MHz. Gain in dB, Voltage gain. Example: Calculate the time constant, max. NOTE: Last modified: Fri May 15 19:54:23 CEST 2015, Inductance of arbitrary coils configurations. Start setting up a circuit by placing the coil and resistor next to each other. Changed all outputs to comma as dp when set accordingly Rewrote the Fusing Current calculator and added a multiplier. current and BGA Land calculator to determine optimal pad size based on ball diameter. Line isolator. Fixed frequency radio group for Signal Calculator. Added an EDA Resources menu item. Fixed install directory issue, now installs to V5 directory. All online calculators that use the IPC-2221 formula are now obsolete!!! All online calculators that use the IPC-2221 formula are now obsolete!!! Changed the Tpd units of time from ns to ps in the Conductor Impedance calculator. Fix an issue for comma user where 10.5 was an invalid default value. L is the inductance in henries (H),. Re-added all of the social media icons. Removed conductor width derating and replaced it with conductor etch factor. Added Solve for LED Current mode in the Ohms Law calculator. More work to come on he Signal Properties calculator. Via capacitance Tuning can be done by adjusting the 1/4 wave stub length and the feedpoint position. Updated the EULA It requires the input of the value of the resistor and the value of the capacitor.. Changed how the wire gauge calculator works, added max amps in air. Edge coupled internal asymmetric differential pair If you use two resistor in series it is quite easy to figure out which values give the best match; on the other hand, using a parallel connection it is not so easy (at least for me) to find a good combination. WebA resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. mmm, well most no-key system executors normally use the easyexploits api which is underpowered compared to krnl or fluxus' API, but i recommend Void. Plane Distance now disables when fuse current option is selected for conductor properties Added IPC version to options for conductor current. Corrected metric value of co & lo in the Conductor Impedance calculator. Added LED resistor value calculator. (B4) Corrected outer pad diameter error in padstack calculator for metric setting. Fixed outer pad diameter error in padstack calculator. Outputs are still in . but all inputs now accept the ,. Uses theE. Hammerstad and O. Jensenequation to determine effective dielectric constant of a microstrip. Added a new series of images in the Conductor Calculator. All values are within +/-10% of the chart values however. (B7) Removed the T/H label from the CPW claculator. ResistorCapacitor (RC) Circuit Calculator. It is an off centre fed dipole, with 10 feet of vertical radiator. You no longer need to change the system dp for program to work. 2 yr. ago. Via voltage drop Minor bug fixes and corrections. Series Capacitor Calculator. Fixed Enter copper weight manually display issue. Added PPM Calculator for crystal toloerance values. Hello John very nice detailed description. The first result that can be determined using the calculator above is the RC time constant. (B6) Changed the Top Side Conductor Percentage to Conductor Width Derating (B5) This may change again or go aways as we look for a better way to handle this. Rainer is one of the best free roblox. Calculate the loaded voltage divider This function calculates voltages, currents Minor menu item changes. Changed defult install path. Changed stipline formula restriction to 0.1 < W/H <2.0. Via impedance Converts mm to mils, mils to mm. Added Watts to resistor dividers in Ohms Law calculator. Version 7.03 Updates & Additions: Added note when solving for conductor width. Added Ohms Law calculator. Made from PVC pipe with screw on end caps. I just used some thick earth wire (because I had some). Updated installer to support Windows 7. Calculates impedance of a PCB Microstrip or PCB Stripline. Conductor temperatures properly read N/A when disabled. Used a G5RV for years then had a break of some 20 years. Calculates the inductance of a planar PCB inductor. Added a separate BGA input for the Padstack calculator to determine maximum trace width between BGA lands. No longer uses multipliers for cross sectional area as related to the IPC-2152. This figure which occurs in the equation describing the charging or discharging of a capacitor through a resistor represents the time required for the voltage present across the capacitor to reach approximately 63.2% of its final value after a change in Added power dissipation in dBm for via and conductor calculator Corrected the Tpd formula for the Microstrip calculator. Increased the maximum thermal via count to 999. This resistor calculation tool shows which combinations of two resistors (series or parallel) gives a match better than the closest standard value, for the E12 (10%), E24 (5%) and E96 (1%) series. Electronics Assistant includes all these calculators and more in a

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