Pinout information for the tachometer.

Tachometer/RPM II.

This is an improved version of the Tachometer created specially to measure up to 9,999 RPM. Uses a PIC 16F628. (04/24/2006)
Category: microcontroller circuits automobile homemade - Updated: 2014/03/02
quartz clock

One Second Timebase.

Here are the instructions how to get one-second (1hz) pulses from a broken quartz clock. This is a precision timebase generator that can be used in any project that needs exactly one-second pulses. (6/11/2006) Updated!
Category: electronics circuits diy projects - Updated: 2014/03/02
NXT Record player

NTX Gramophone / Vinyl Record Player

This is my second version of my homemade Gramophone/Phonograph using my LEGO Mindstorms NTX. (2/11/2007)
Category: lego science projects homemade audio howto - Updated: 2014/03/02

Knowing Everything.

You don't know everything until you read this (12/11/2005)
Category: interesting discover readings - Updated: 2014/03/02
homemade hi fidelity speaker.

Hi-fidelity Homemade Loudspeaker.

From the Inventor of the Styrofoam Plate Speaker, here are the instructions to build the "Hi-Fidelity homemade styrofoam-plate speaker". (8/6/2007)
Category: hacks science projects diy homemade audio howto - Updated: 2014/03/02
ANP 16F84A 16F628A microcontroller PIC LED clock with display control

'Almost No Parts' 12/24hrs LED Clock

A 12hr/24hr LED Clock with display control, uses a microcontroller PIC 16F84A or 16F628A and a few parts. (August 25, 2009)
Category: microcontroller projects circuits - Updated: 2014/03/02
Google Suggestion fail.

Google Sugestion Fail I

Excuse me, what? (March 20, 2010)
Category: humor funny - Updated: 2010/03/19
PHP info Function result

Hello PHP!

A simple PHP tutorial for beginners.
Category: php scripts - Updated: 2010/01/27
piezoelectric

Making High Impedance Headphones

With less than 5 bucks (better known as $5 USD) you can make a high-impedance headphones for your homemade crystal radio. (11/27/2007)
Category: howto hacks projects diy - Updated: 2010/01/20
Creating MySQL user

Creating MySQL Users

How to create MySQL users using the MySQL Console to start working on a database. (7/22/2009)
Category: php mysql howto scripts - Updated: 2010/01/20
Making Circles

Paperclip Ideas II

So, you are looking for some things to make when bored at work huh?
Category: howto projects diy - Updated: 2010/01/19
first transistor

Making Homemade Transistors

After 20 years, Where I am in the race of "Do it yourself transistors"? (9/24/2009)
Category: diy projects - Updated: 2010/01/19
Wireless-G USB adapter model WUSB54CC with external antenna

Linksys Wireless G USB antenna.

Hacking the Linksys Compact Wireless-G USB adapter model WUSB54CC to connect an external antenna. (10/24/2008)
Category: computer hacks diy homemade howto - Updated: 2010/01/19
Compass made in Japan

Homemade Compass

Another easy-to-make diy science project. Build a compass for [almost] free! (1/14/2008)
Category: science projects homemade diy hacks howto - Updated: 2010/01/19
paperclip compass

Paperclip Compass

A simple and easy way to make a home-made compass using a paper clip and magnet.
Category: science projects homemade diy hacks howto - Updated: 2010/01/19

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