ODYSEE EXCLUSIVE: How I make videos.
A behind the scenes look at how I make whiteboard tutorial videos and my thought processes involved.
Do I write scripts? Do I plan things? How many takes?
What's is this obscure 1970's bit of kit from a big name manufacturer?
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https://www.youtube.com/watch?v=TCpo_vNWzMs
Part 1 here: http://www.youtube.com/watch?v=leC-zSMbtfg
Dave follows a more methodical troubleshooting procedure in order to track down the fault in the Tektronix TDS3054 oscilloscope.
Measuring the low and high frequency differential outputs of the hybrid front end, the voltage rails and other parts. And has the magic smoke escaped?
And he couldn't resist playing with his new Flir E8 thermal imaging camera .
Forum: http://www.eevblog.com/forum/blog/eevblog-565-tektronix-tds3054-oscilloscope-repair-part-2/
Memory Datasheet: http://www.datasheetarchive.com/dl/Scans-061/DSA2IH0096628.pdf
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https://www.youtube.com/watch?v=qXGqDDE9-4M
Dave uses his CSIRO National Measurement Institute rubidium frequency standard to calibrate and adjust his Agilent 53131A frequency counter.
With bonus teardowns.
Agilent 53131A Schematics: http://cp.literature.agilent.com/litweb/pdf/5989-6307EN.pdf
http://www.thinksrs.com/products/PRS10.htm
Forum Topic: http://www.eevblog.com/forum/blog/eevblog-456-csiro-rubidium-frequency-standard/
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https://www.youtube.com/watch?v=zPPB7ZzO_TA
Forum Topic: http://www.eevblog.com/forum/blog-specific/eevblog-346-mlf-reflow-soldering/
How to use solder paste and a hot air gun to reflow solder a surface mount SMD 0.5mm pitch 3mm x 3mm MLF (QFN) chip.
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https://www.youtube.com/watch?v=M_rO6oPVsws
Dave investigates how the front end bandwidth limiting works on the Rohde & Schwarz 1202 series oscilloscope.
Is the bandwidth limit set just by the LMH6518 front end Variable Gain Amplifier chip through the SPI bus?
See the extended 50 minute version here that has much more detail and mucking around trying to get the R&S1202 to probe itself.
https://www.youtube.com/watch?v=HiqtXdK1Dtk
Forum: http://www.eevblog.com/forum/blog/eevblog-879-rs-1202-scope-bandwidth-hack-investigation/
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https://www.youtube.com/watch?v=3THvWEKGOwE
The failed PedalCell CadenceX Bike Generator from the previous mailbag video is tested, torn down, analysed, hilrariously laughed at, and dodgily repaired.
https://pedalcell.com/
00:00 - Failed Pedalcell generator - getting the pinout
02:00 - The PCB
02:40 - Oscilloscope rotation test
03:45 - Dremel speed Captain!
04:22 - Generator teardown
05:32 - Hmm, what's going on with these stator coils
06:00 - Hall effect sensors
06:58 - A-HA Gotcha. These magnets make no sense at all!
08:47 - Someone skimped at the glue factory
11:27 - It's just a BLDC Brusshless DC motor being used as a generator
12:48 - Nothing that can't be fixed with some epoxy
14:00 - Vrooooom!
Forum: https://www.eevblog.com/forum/blog/eevblog-1485-pedalcell-cadencex-bike-generator-lol-fail!/
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#ElectronicsCreators #FAIL #Pedalcell
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https://www.youtube.com/watch?v=o7xfGuRaq94
Dave shows some of the email from "Kickstarter Vultures" he got.
Every success crowdfunding campaign will get inundated with emails from companies that are spamming their marketing, fulfillment and manufacturing services etc.
Beware of the scammers!
Forum: http://www.eevblog.com/forum/eevblab/eevblab-43-kickstarter-vultures/
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https://www.youtube.com/watch?v=4tcC_TdhzUU