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Fun with Chemistry

Fun with Chemistry

Fun with Chemistry

The work of chemists is to study different kinds of matter, these and hundreds of thousands of other kinds too.

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The Classics Illustrated Collection

Classics Illustrated is an American comic book/magazine series featuring adaptations of literary classics such as Les Miserables, Moby Dick, Hamlet, and The Iliad. The series began publication in 1941 and finished its first run in 1971, producing 169 issues.

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Stephen Ostermiller Code

Stephen Ostermiller has many interesting and innovative code that will help you learn the right way to write code in JavaScript or Perl . Some of the highlights are Scientific Calculator, Triangle Calculator, Contact Form, Tic-Tac-Toe Graphing Calculator Programs, Java Utilities, RSS Reader and Random Password Creator.

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Low Cost AM FM Stereo Receiver

FM stereo demodulation is accomplished by the use of the LM1800 phase locked loop, thereby eliminating the need for external coils. The AM function of the receiver is done completely with the LM3820 AM radio system. While designed for 3 section tuned superheterodyne application.The LM382 dual preamplifier was selected for its minimum parts count and low noise capability.

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Wandel Golterman Level Meter

Wandel Golterman Level Meter

The SPM-3 is a broadband and heterodyne level meter whose frequency range is is designed for balanced 1 20 channel systems.

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Flashing LEDs Electronic Kit

Flashing LEDs Electronic Kit

Flashing LEDs Electronic Kit– ApogeeKits created the Flashing LED’s electronic kit AMK102B as an entry level introduction to electronic kit building.

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World of Heathkit do-it-yourself electronics

World of Heathkit do-it-yourself electronics

World of Heathkit do-it-yourself electronicsAll of man’s progress has stemmed from ideas, ideas held by men and women who pioneer new concepts.

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LED Blitzer is a LED Blinker

LED Blitzer is a LED Blinker

LED Blitzer is a LED BlinkerThis strange circuit was in Openclipart i am not sure if it will work. Later i found (more…)

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DMM Multimeter DM2867

DMM Multimeter DM2867

Buy our new DMM with all the features you Expect. Extra Safety Improvements. True RMS and True Watts.

Sale This Fortnight – Just 100 USD  Buy it at Mint Shop today and win an Oscilloscope if you become our 10,000th customer.

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DMM range and AC-DC mode Logic

DMM range and AC-DC mode Logic

This is the third circuit that you will need to build a Simple Benchtop DMM with no Microcontroller. Here the U1D and (more…)

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Inverting Amplifier – Op-Amp Circuits

Inverting Amplifier – Op-Amp Circuits

Input Impedance of this module is Ri as pin 2 is at virtual ground, the opamp with feedback tries to maintain pin (more…)

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Digital Programmable Gain Amplifier

Digital Programmable Gain Amplifier

I read your post which is about, Digital gain control of Op-amp.  I have some questions to ask, if possible.  Please reply (more…)

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Acme Hyper Magnetics

We make Multi-voltage relays. These are devices designed to work for wide voltage ranges such as 24 to 240 VAC and VDC and wide frequency ranges such as 0 to 300 Hz. They are indicated for use in installations that do not have stable supply voltages.

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Design Notes – Analog Basics – 06

Building discrete semiconductor and passive designs, using Opamps and Mixed (more…)

The Oath of Aristotle

Cheer up the New Year by creating colorful, safe, ergonomic, affordable and innovative product designs. May the Force be with all of you. The Hippocratic Oath has been thrown aside by the Health Care Community. Engineers should follow Aristotle both in creativity and also ethics.

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Basic Electronics and Tutorials

Basic Electronics, Practical Electronic Projects, Learning Circuit design, Electrical Fundamentals. Edutainment and Interactive Examples. Product Design Fundamentals. Theory must be studied once and referred to, again and again as you do practicals. One is by building DIY projects and then modifying them. Also Repair of equipment, troubleshooting, testing and calibrating.

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Web Resources

Stephen Ostermiller Code

Stephen Ostermiller has many interesting and innovative code that will help you learn the right way to write code in JavaScript or Perl . Some of the highlights are Scientific Calculator, Triangle Calculator, Contact Form, Tic-Tac-Toe Graphing Calculator Programs, Java Utilities, RSS Reader and Random Password Creator.

on: 5/21/2022

Omnispace and Agora-Project

Agora-Project is the open-source software on which the Omnispace service is based. Omnispace is a collaborative work platform: it is a website and a service that centralize knowledge management and project management tools. 

on: 10/18/2021

CPick - HTML or HEX Color Picker

Sam Francke created a versatile freeware for a web designer or programmer. The colors for the GUI for the Web Application or Software can be chosen by this extremely useful software. Program to get colors from your screen with the build in magnifier. Zoom 1 to 10. Modify colors with the RGB or HSV slide bars. Copy the color to the clipboard as Hex, Decimal, RGB or HSV value.

on: 12/19/2020

ExpressionEngine Content Management

ExpressionEngine is a flexible, feature-rich content management platform that empowers hundreds of thousands of individuals and organizations around the world to easily manage their web site.

on: 10/23/2020

PanZoom - Zoom Scroll Picture

PanZoom is a lightweight native JavaScript library for panning and zooming elements using CSS3 Transformations. It’s built to have a small footprint and be and simple to use. All your elements given by your selector will now have panning and zoomming functionality. For example, we could have the class panzoom which has many elements.

on: 9/29/2020

Sylpheed Email Client

Sylpheed is a simple, lightweight but featureful, and easy-to-use e-mail client. Sylpheed provides intuitive user-interface. Sylpheed is also designed for keyboard-oriented operation, so Sylpheed can be widely used from beginners to power users.

on: 9/27/2020

Openclipart - Colorful Clipart Images

Openclipart initially grew out of a project started by Christian Schaller , who on October 26, 2003 issued a challenge on the Gnome Desktop website for users of Sodipodi to create a collection of flags in SVG format. The project became known as Openclipart by April 2004, with the stated aim of all contributed images being dedicated to the public domain​.

on: 5/5/2020

Computing Resources

Web Resource, Reference Sites, Freeware, Web Design, Software Tools. Software tools, Opensource Websites. Graphic Resources. Scripts and Apps for Webs development. LAMP CMS, Blogs and other applications. Free reference resources and Educational Sites with free books and learning material. 

on: 5/4/2020

Web Widgets

Pin Note Web Gadget

This is a Tiny memo Pad that will have Sticky Notes on Webpage, saves in cookies. This Web Gadget was for the Homepage, Web-page or blog. Pin Notes. This is not an electronics gadget, but i wanted to try building it, The inspiration for this has been Stickies. Which i have been using for some time. So i built this for my learning. 

on: 10/25/2021

Analog Bargraph Clock

Analog Clock, Linear Display of Time Elapsed using Bargraph, Shows Week Days and Month Days Passed. The WD indicates Complete Week Days passed and MD is Month Days Completed. This is not the date, date is MD+1. This is an example of CSS Animation, that was the Motivation for this clock

on: 7/13/2021

Oscilloscope with JavaScript

The Oscilloscope is a Real Time Graph of Volts Y and Time X at any node of a circuit. It can show both AC and DC. This is a Virtual JS Oscilloscope - Fourier Series Periodic Waveforms using JavaScript. This is a Toy Scope or a waveform display which i will integrate with my other tutors to display AC points in place of voltmeters. Virtual JS Oscilloscope

on: 9/27/2020

Digital Alarm Clock

Digital Alarm Clock Web Gadget with Musical Alarms. This Web Gadget is for the Web-page or blog. You can set Five Alarms with Ten Selectable Musical Sounds and a small Text memo. The simulation is as close as possible to a uC based Clock which you could build, The GUI is more like a electronic gadget than a Software Application. That should charge you to build your Alarm Clock today.  ... Alarm Clock Manual

on: 9/27/2020

EE widgets of delabs

These are Gadgets i HandCrafted with JavaScript. Add them to your Webpage or Blog. There are Web widgets related to learning electronics and also demonstrating the subtle aspects of  Product Design Technologies.

on: 9/26/2020

Aircraft Dashboard Chronometer

Digital Clock with 24 hour Military Time Format, Aircraft Dashboard Chronometer Like Looks, Date, Time, Weekday and Week of Year. Clock Gadget, looks like a Clock in Cockpit Dashboard. It is a Mimic of A Flight Chronometer Instrument. It shows Time and Date close to Military Time-Date format. It also has week number and weekday display.

on: 9/24/2020

Programmable Digital Timer

Here is is gadget GUI for Industrial Process control, WebApps. The buttons make a sound and Light up internal LED lamps. Power On-Off control, Digital Timer; Start, Reset Scroll and Select are the controls. A Web Gadget which is a Preset Timer. This can be Programmed from any Browser. It can also be modified to control external outputs. The advantage is that the industrial process or Home automation can be monitored and controlled on any computer including tablets which has a Browser

on: 12/18/2019

Tristate Electronic Random Toss

Running LED, Random Results, Decade Counter and Clock. Weigh the Pros-n-Cons, Take a Balanced Decision. This can be built with one 555 timer and a CD4017. Use the pin 5 to connect to a cap you charge with a pushbutton or gate like CD4093 to turn off 555 using pin 4 after a cap discharges. This may simulate a random. Running LED, Random Results, Decade Counter and Clock. Weigh the Pros-n-Cons, Take a Balanced Decision.

on: 11/26/2019