Four DIPs provide as many as 80 sequential-LED outputs

www.electronicsweekly.com | Aug 27, 2008

A simple circuit uses HCMOS parts and adds one 74HC540 to multiplex the outputs of two 4017 counters for as many as 80 outputs.

http://www.electronicsweekly.com/Articles/2008/08/27/44335/four-dips-provide-as-many-as-80-sequential-led-outputs.htm

Four DIPs provide as many as 80 sequential-LED outputs

www.edn.com | Aug 21, 2008

A simple circuit uses HCMOS parts and adds one 74HC540 to multiplex the outputs of two 4017 counters for as many as 80 outputs.

http://www.edn.com/article/CA6586226.html

Design Ideas tackle "common" design problems, common-mode voltage and LED aging

www.edn.com | Dec 14, 2007

Design Ideas editor Charles H. Small introduces EDN's latest engineer-submitted circuit designs, providing links to related articles from our archives, design resources elsewhere on the Web, and just-plain-fun stuff.

http://www.edn.com/index.asp?layout=blog&blog_id=910000091&blog_post_id=310018831

Cascade two decade counters to obtain 19-step sequential counter

www.edn.com | Dec 14, 2007

Interleaving the outputs of a pair of Johnson counters yields a 19-step, sequential count.

http://www.edn.com/index.asp?layout=article&articleid=CA6512153&industryid=47041

Lab Electronics

This demonstrator provides an insight into the working of an analog multimeter to the student. Selection of ranges made by patching wires is required for better understanding. Moving coil meter having a sensitivity of (0-200) mA has to be connected.

http://www.labelectronics.com/dynamicdemo.htm

issueTOC on EDN: Electronics Design, Strategy, News 12/14/2007 Table of Contents

www.edn.com

By Staff EDN's editors offer up their annual list of the year's 100 most significant ICs, components, buses, boards, EDA tools, power devices, test instruments, and more.

http://www.edn.com/index.asp?layout=issueTOC&pubdate=12%2F14%2F2007

Flite OLS-2000 Digital Electronics Overlay Learning System

PLEASE NOTE : Flite Electronics International reserve the right to modify, improve and alter specifications without notice, while still maintaining the overall didactic objective.

http://www.flite.co.uk/flite-ols-2000-digital-electronics-overlay-learning-system.htm

3006 - Roulette LED Game

A great introduction to gambling ......err, electronics!! Ten LED's arranged in a circular pattern simulate the ball rotating around the "wheel". Press the "Roll" button & the 'ball' runs at maximum rate.

http://www.quasarelectronics.com/3006.htm