Calculators / Info

Resistor Color Coder

This freeware resistor color code program is very useful for determining color codes or values for 4 and 5 band resistors. To select the mode, click on the 4 or 5 band resistor icon in the upper right. The lefthand 3 or 4 bands determine resistor value, the righthand band resistor tolerance. Now includes Surface Mount Device (SMD) Markings Evaluator and E-Series Standard Resistance Tables

555 Timer PRO EX

555 Timer PRO EX provides an array of design wizards, circuit blocks and information panels that facilitate the use of the 555 timer in projects. Component value calculations for the 555 take into account the supply voltage, timer fabrication (CMOS or Bipolar), and, where appropriate, load currents.

Schematic Symbol Reference

This is an offline version of the Schematic Symbol Reference. It contains all the same info, but is a standalone program that requires no Internet connection to run. This will run under Windows 95, Windows 98 and NT4 Server and Workstation.

555 Timer

This program allows you to calculate Resistor and Capacitor values for both Astable and Monostable modes. Please note that this program was written using Visual Basic 4.0 Therefore it requires the Visual Basic 4.0 Runtimes.

Resistor Calculator

This Program is an extremely handy tool for finding standard values of resistance to meet a specific need. This software is especially geared towards calculating values for voltage divider circuits.

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