Hobby Projects - Insulation tester, LED Circuits, Meters.
Showing posts with label Calculators-Formulas. Show all posts
Showing posts with label Calculators-Formulas. Show all posts

Wednesday, April 13, 2011

Amateur Radio and Calculators for Electronics

John Owen has made Enriching Electronics Pages at vwlowen.co.uk. There are many Ham Radio projects too.

Amateur Radio and Calculators for Electronics

A highlight is the "Build A PICAXE Weather Station." This is quite Exhaustive and Detailed.

Build a Project

Starting Electronics - a simple first project.

Here he teaches in simple tongue, The method and steps to towards the first project and that too, with the Sacred SG555 Timer.

Collection of calculators, ready-reckoners

Here is where he dazzles, He has developed very useful Calculators to make your Numbers Game a Piece of Cake.

MiscEl - Many Electronic Calculations

A swiss army knife for the Electronic enthusiast. This single program packs many applets that help you overcome the Formula Amnesia and even Poor Math Skills.

MiscEl - Many Electronic Calculations

The program contains a lot of pages with different electronic calculations. Each page contain one or more different calculations.

MiscEl - Many Electronic Calculations

Science calculators are on Geometry and Periodic table. Some Electronic Calculators are shown below
  • TinyCalc Can do the same as the entry line in Calculator, but is very small when pulled out.
  • Ohms law Ohms law, impedance of capacitor and inductors, complex power
  • Waveforms Calculates RMS, mean, PEEK, DC, FFT for different waveforms.
  • Thermo sensors Calculates for PT100, NTC and all types of thermocouples
  • Series/parallel Calculate/design series/parallel connection of resistors, capacitors and inductors

Tuesday, April 12, 2011

Radiocalc or dBcalc - Conversions RF Engineering

Besides classical functions and dB conversions, RadioCalc includes a converter of Power to field strength commonly used for EMC/EMS test-set-up. Also impedance can be represented as a function of reflection coefficient (somehow like an electronic Smith-chart). This and many other functions are obtained by clicking into the arrow of the "Conversion off" window.

Radiocalc - Convertisseur Radio Universel

Radiocalc - Convertisseur Radio Universel

Thanks to RadioCalc the different dB charts are obsolete by computing the ratios of Power (W) or Voltages (V) according to dB = 10*log(P2/P1) ou dB = 20*log(V2/V1).

Just for a trial : type 100/10 (or just 10) and push the dB button as the 'W' mode is chosen, the result will be 10 dB, then choose the 'V' mode by clicking in the V button (in the Quick dB window) push again dB, the result is now 20 dB.

From - Temcom - Consulting for test & measurement and electronics in France
(This was Earlier Radiocalc, i have now updated the link to the new site in France)

Thursday, March 20, 2008

Periodic Table and other Calculators

Periodic Table and other Calculators

Periodic table of the elements contains the basic data about the elements in five languages.  Periodni sustav elemenata

EniG. Chemistry Assistant 2.4 An expression calculator for fast calculation of molecular weight of compounds by simple entry of chemical formula (the element symbols can be written in lowercase letters). The calculator also provides a list of common physical constants and performs various conversions between English and metric units.

Scientific calculator Sci.Calc is a fully-functioning JavaScript calculator that contain of practically any common and many advanced calculator functions (cosine, sine, tangent, power, square root, exponents, etc.).


Learning Electronics by Hobby DIY is not Complete without a sound Knowledge of Materials, A Periodic table Reference will help in Understanding the Metals and Semiconductors.

Every Metal has a potential for a New Component Discovery, Even a Breakthrough in SuperConductivity at Room Temperature will change the way we build Gadgets !

Anantha Narayan -delabs

Tuesday, November 13, 2007

Radioing - RF calculators and Virtual Museum

Radioing - RF calculators and Virtual Museum


  • Library - exams, code, operating aids, DX
  • Ham Tools - RF calculators, conversions
  • Virtual HamShack, callsigns, links, photos


  • Electrical Engineering Topics
  • Electromagnetics, Glossary
  • Interference, RFI

Ham Radio Virtual Museum

  • A Virtual Museum of Ham Radios
  • Transmitters, Receivers, Transceivers
  • Photos & Specifications of the Classics

Saturday, June 09, 2007

Electronics 2000 - Calculators

Hobby Electronics - Software, Calculators, Forum, Technical Data, Pin-outs, Beginners Guide, Links.

Electronics 2000 - Calculators

A beginners guide to project building, technical data, interactive formulae calculators, software downloads including Electronics Assistant and EPE Index.

Electronics Assistant

Electronics Assistant is a Windows program that performs electronics-related calculations. It includes a resistor colour code calculator, resistance, capacitance and power calculations and more.
  • New 555 timer, voltage regulator & RC filter calculators
  • Enhanced series / parallel resistance & capacitance calculator
  • Calculation of preferred capacitor values with a choice of series from E6 to E24