DiscoverCircuits.com, has
26,000+ electronic circuits
or schematics
carefully
cross-referenced into 500+ categories. As a
vital resource for engineers,
hobbyists, inventors &
consultants, the site's collection of information
will
help you find quick solutions to electronic design
problems.
555 Timer - Frequency and Time Interval Calculator - Calculates positive and negative
time intervals for the 555 timer based on R and C values. Also contains descriptions and operation of each input and output of the timer and schematics for the two basicmodes of operation
(monostable or "one-shot" and astable or "rectangular wave oscillator"). Also contains a pictorial diagram of the timer connected as a LED flasher and a table of connections for the 556 timer
(dual 555 timer).
NEWE2CALC - An Electronics Engineers Calculator Program - E˛CALC, or the Electronic Engineers Calculator is
an engineering calculator and formula solver program with some other handy utilities thrown in. It was reviewed in the May 1992 edition of Electronics Australia.
Electronics Calculator Website - Several calculators for Ohm's law, capacitor
or inductor impedance, tuned circuits and RC time constants.
L or C Reactance Calculator - Java Script to calculate capacitive or inductive
reactance and resonant frequency. For ideal devices only, resistance not included.
Resistor Color Code Calculator - This one uses check boxes instead of pulldown
menus and also calculates the equivalent value of two resistors in parallel. My own creation.
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