Hosted by David L. Jones
And presented in Dave's unique non-scripted overly enthusiastic style!
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EEVblog #215 – Gaussian Resistors
Posted on November 8th, 2011 23 comments
Just how far out is that +/-1% metal film resistor you are using?
Is it just random?
Does it follow the classic bell shaped Gaussian response?
What are the odds of getting one that’s spot on, or right out at the limits?
Dave thought he’d find out, the hard way…Original Data can be found here, in both Open Office and Excel formats, play around yourself!
http://www.eevblog.com/forum/index.php?action=dlattach;topic=5460.0;attach=16808See here for more analysis on the data by Bob from Ohio:
http://www.eevblog.com/forum/index.php?topic=5460.msg71085#msg71085 -
EEVblog #181 – Dead Bug Prototype Soldering
Posted on June 21st, 2011 27 commentsDave show you how to solder a small 3 axis accelerometer LGA surface mount chip “dead bug” style onto a microcontroller prototyping board.
This technique allows you to easily prototype projects using tiny SMD components designed only for reflow soldering. -
EEVblog #180 – Soldering Tutorial Part 1 – Tools
Posted on June 19th, 2011 40 commentsDave takes you through everything you need to know to do good quality soldering.
Part 1 is all about the tools you might need.
A lot of this was already covered in my general lab tools video. -
EEVblog #159 – Oscilloscope Trigger Holdoff Tutorial
Posted on March 30th, 2011 24 commentsOne of the more obscure controls on an oscilloscope is the Trigger Holdoff control. A dedicated control on most high end analog oscilloscopes, and a main menu option in modern digital scopes, yet often poorly understood. What does it do and how does it work?
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EEVblog #158 – AVR ISP MK2 + LM317 Regulator Tutorial
Posted on March 25th, 2011 29 commentsWho else but Dave can turn what was supposed to be a simple 2 minute AVR ISP hack video into a 30 minute episode on designing and measuring the performance of an LM317 voltage regulator circuit, with a bonus shootout between the Fluke 87V and the Gossen Metrahit XTRA multimeters?
