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video thumbnail 11:59
Hacking a milligram balance (scale) with a Parallax Propeller microcontroller

2013-02-25

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video thumbnail 4:56
Jukebox color wheel synchronizer

2012-12-10

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DIY X-ray backscatter imaging system (airport body scanner)

2012-11-26

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video thumbnail 4:34
Large area detector for X-rays

2012-11-04

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video thumbnail 8:54
Reverse-engineering and testing an x-ray filament supply

2012-10-29

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video thumbnail 6:47
Measuring the voltage, current, and light output of a strobe flash lamp (Speedotron 4803)

2012-10-08

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Viewing an active electronic circuit with a scanning electron microscope

2012-09-03

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Measuring the voltage and current of a microwave oven magnetron

2012-06-25

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Projector HID arc light mounted into a desk lamp

2012-02-12

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LED mounted in a contact lens for possible virtual / augmented reality displays

2011-12-19

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Tutorial: Op-amp circuit for force sensor signal conditioning

2011-12-09

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video thumbnail 7:40
Microstepping a stepper motor with the SLA7062

2011-10-18

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video thumbnail 2:43
Repairing the 5V output from a Mastech HY3005D-3 (cheap import) power supply

2011-08-10

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Transcranial Magnetic Stimulation project - part 2

2011-08-07

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Frequency response test for thermal imaging sensor

2011-07-24

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Product Review: CP06 low-cost AC/DC clamp-on current probe

2011-07-18

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Transcranial Magnetic Stimulation project - part 1

2011-07-16

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video thumbnail 10:15
Extech IR250 infrared thermometer disassembly and plans for thermal imaging

2011-06-24

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video thumbnail 7:00
Piezoelectric Braille system with PC parallel port control and HV transistors

2011-04-25

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Fiberoptic mouse with quadrature encoders and custom shutter buttons

2011-04-14

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video thumbnail 9:11
Fiberoptic joystick with quadrature encoders and arduino

2010-12-19

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video thumbnail 6:10
DIY flex sensor gloves for possible VR or video game control

2010-12-11

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video thumbnail 7:41
1000W xenon arc lamp built into DIY searchlight housing

2010-10-13

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video thumbnail 6:55
Remote electronic focus for telescope (DIY remote follow focus)

2010-09-13

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video thumbnail 7:07
Web-controlled watering can with siteplayer and arduino

2010-09-05

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video thumbnail 5:25
Universal motor speed control by a microcontroller (arduino)

2010-08-29

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video thumbnail 4:25
Detectron DG-2 geiger counter teardown and testing

2013-10-08

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video thumbnail 5:20
Tongue mouse: Cursor control with your mouth!

2013-11-25

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video thumbnail 6:48
Posture-based game controller

2013-11-17

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video thumbnail 6:44
Clear flexible printed circuits - first success

2013-10-21

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video thumbnail 13:44
Explanation of how kilowatt-hour meters work (electromechanical)

2013-10-06

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video thumbnail 8:38
Quartz crystal thickness monitor for vapor deposition in vacuum

2013-09-08

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video thumbnail 6:46
Thermocouple vacuum gauge teardown and explanation

2013-06-30

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video thumbnail 9:51
How a breathalyzer works (alcohol sensor)

2014-02-24

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video thumbnail 6:27
Intro to plasma cleaning

2013-12-15

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video thumbnail 5:34
Unusual usage (hours) counter with mercury capillary

2014-05-02

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video thumbnail 5:15
Trigger circuit for large xenon flash tubes

2014-04-29

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video thumbnail 5:46
Mathematical integration without calculus

2014-06-29

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video thumbnail 7:44
Measure the mass of an eyelash with a DIY microbalance

2014-06-08

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video thumbnail 7:56
Use an oscilloscope to collect optical spectral data

2014-06-02

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video thumbnail 11:27
Measure car engine speed RPM via the cigarette lighter

2014-05-25

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video thumbnail 17:26
Electron microscope image capture via microcontroller (with drill bit animation)

2015-08-30

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