Posted on December 11th, 2013 11 comments
Dave celebrates the classic 555 timer IC by building the Evil Mad Scientist “three fives” discrete timer kit.
Some scope measurements and an explanation of the internal 555 timer circuitry follow.
Classic old Signetics 555 timer datasheet
Han’s Book on Analog chip design
Posted on December 4th, 2013 15 comments
Dave tears down a vintage 1984 Sinclair FTV1 / TV80 pocket TV and explains how the innovative 3 deflection system flat screen CRT works.
Service Manual with schematics and theory of operation:
Flickr Photos: http://www.flickr.com/photos/eevblog/sets/72157638306245666/
Info page: http://www.thevalvepage.com/tv/sinclair/ftv1/ftv1.htm
Guy who worked on the CRT: http://www.youtube.com/watch?v=VB7RgVqTgXI
Posted on December 2nd, 2013 8 comments
DIN 41612 Roth Electronics Extender Card
Self Balancing Unicycle
Tektronix 213 oscilloscope and HERE
Posted on November 29th, 2013 5 comments
Dave demonstrates how to add testing capabilities to your PCB panel for easier production testing. Using an example of his new uCurrent design, and also a commercial product designed to be automatically ATE tested.
Essentially Part 3 of the PCB Design For Manufacture series.
PCB DFM Part1
PCB DFM Part2
uCurrent Test Jig HERE
Testing uCurrents HERE
Posted on November 26th, 2013 6 comments
Dave takes you on a highlights tour through the first Sydney Mini Maker Faire at the Powerhouse Museum.
This is the overview video, more will follow with behind the scenes stuff and extended interviews.