Dave explains how BJT and MOSFET transistors work at the silicon chip level. How does a BJT transistor actually amplify current? P and N type doping, charge carriers, conduction channel, field effect, holes and electrons, all the other good stuff.
Dave opens his mail. A potpourri of items this week.
Forum: http://www.eevblog.com/forum/blog/eevblog-775-mailbag/
SPOILERS:
The world's smallest digital dosimeter / Geiger counter, and it's open source!
https://github.com/shodanx/ultramicron
https://www.youtube.com/watch?v=PKjtOTeAevg
The Stick-Vise PCB Holder:
http://www.stickvise.com/
Russian nixie tube display
The 1962 Ferrari 250 GTO
Telsa merch
Buzz Aldrin's Mission To Mars
Old Hioki analog clamp meter teardown
Old analog VOM teardown
Citizen Pocket LCD TV
Texas Instruments SR-10 Electronic Slide Rule Teardown
JRC ADC chip datasheet: http://pdf1.alldatasheet.com/datasheet-pdf/view/7614/NJRC/NJU9203BD.html
Old PSU teardown
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Dave troubleshoots a Soniq L32V12A 32" HD LCD TV
Part 2: https://www.youtube.com/watch?v=orFkIXO0uUI
Forum: http://www.eevblog.com/forum/blog/eevblog-630-soniq-lcd-tv-troubleshooting-repair/
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Why do digital oscilloscopes appear noisier than traditional analog oscilloscopes? PART 2
Learn how and why your digital storage oscilloscope display the noise that it does.
In this 2nd installment Dave shows how waveform update rate affects the apparent displayed noise of a waveform, and alters the waveform update rate on an Agilent DSOX3000 to show this.
Also, how sample rate and timebase settings affects the boxcar averaging high-resolution display function.
PART 1 is here: https://www.youtube.com/watch?v=Znwp0pK8Tzk
Forum: http://www.eevblog.com/forum/blog/eevblog-610-why-digital-scopes-appear-noisy-part-2/
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Dave takes a look at the 21,000fps Chronos Kickstarter high speed digital camera prototype.
https://www.kickstarter.com/projects/1714585446/chronos-14-high-speed-camera/
Tesla500 Youtube Channel:
https://www.youtube.com/user/tesla500
World's most powerful LED light - 5kW
https://www.youtube.com/watch?v=h-UoYVBFRPQ
Forum: http://www.eevblog.com/forum/blog/eevblog-947-chronos-high-speed-camera-review/
EEVblog Main Web Site: http://www.eevblog.com
The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2
Support the EEVblog through Patreon!
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Dave discovered a hidden feature in the new Rohde & Schwarz RTB1004 Oscilloscope - Whack Trigger!
Does the feature exist on other scopes? Dave checks and compares every scope in the lab to find out!
Keysight 3000X
Keysight 1000X
Rohde & Schwarz HMO1202
Rigol DS1054Z
Siglent 1000X-E
Rigol 2000
GW Instek GDS-1104B
Tektronix MDO3000
Teledyne Lecroy WaveJet Touch 354
Old video on probe shock response:
https://www.youtube.com/watch?v=wePQltAe3_4
Forum: http://www.eevblog.com/forum/blog/eevblog-983-a-shocking-oscilloscope-problem-!-aka-whacking-triggering/
EEVblog Main Web Site: http://www.eevblog.com
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Support the EEVblog through Patreon!
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