A Machine That Can Draw Any Shape
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Category Archives: Inspiration
DIY EMF Detector
Electronics Project #27: Space Drop Handheld Game | Learning Electronics In The Lab With Jay Jay
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This post is part of my video blog and you can find more information about this video.
Silly Job Title: Current Curator. I am the Current Curator!
In this video we follow the instructions to build the Space Drop handheld computer game which you can buy in kit form from here: Space Drop Solder Kit.
The kit comes with the software preinstalled on the D1 Mini microcontroller, but in this video we replace the code with our own version of the code just to see if we could. And we could! Our code is here: Space_Drop.ino.
We use the METCAL PS-900 Soldering Station for soldering.
We use the Pro’sKit SS-331H Desoldering Pump to remove the OLED screen which I accidentally installed without the spacer.
We use the MUIN Solder Fume Extractor to clear the air.
We use the Bysameyee Head-Mounted Magnifier for magnification.
We use the Scotch Titanium Scissors to chop up the packaging for scrap-booking.
We use the Hakko CHP 3C-SA Precision Tweezers for holding solder off cuts.
We use the Plato Model 170 Wire Cutter to snip off component leads.
We use the Kaisi S-160 45x30cm Repair Mat as our workspace.
Thanks very much for watching! And please remember to hit like and subscribe! :)
p.s. today I added OLED to my spell check.
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
DUTRIEUX 14pcs Hexagonal Socket Set |
Let’s go shopping!
Old Book Teardown #24: Electronic and Radio Engineering (1955) | In The Lab With Jay Jay
You can support this channel on Patreon: patreon.com/JohnElliotV
This post is part of my video blog and you can find more information about this video.
Silly Job Title: Ohm Oracle. I am the Ohm Oracle!
In this video we have a look inside Electronic and Radio Engineering 4ed from the Father of Silicon Valley, Frederick Terman.
We have previously covered the 3rd edition of this book, here: Old Book Teardown #8: Radio Engineering 3rd Edition (1947).
Thanks very much for watching! And please remember to hit like and subscribe! :)
p.s. today I added Terman to my spell check.
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
Tenma 72-10505 Bench Power Supply notes |
Let’s go shopping!
Salvage Power Supply Parts Bipolar Supply
I like this bloke’s modular approach.
Just train tired
Justin Sung’s D-F-U-Z method for Thought Action Defusion helps to decouple your productivity from your motivation:
- Distinguish (between feelings, thoughts, and actions)
- Fake (pretend you’re not feeling tired or lazy, even if you are)
- Uptime (increasingly spend longer and longer in the thought-action defusion state)
- Zone (create a distraction-free environment you can be focused in)
Making an automatic putting club
lol. This is over the top. :)
The Proper Way to Splice Wires in Just 60 Seconds
Check out Spliseal! Demo below.
Voltmeters and ammeters
In this photo we see three voltmeters (across the top) and five ammeters (across the bottom) attached to a voltage divider connected to a load.
30 V is applied then 2 mA flows through R1 and then splits with 1 mA going through R2 and 1 mA going through Rload. 20 V drops across R1 and there is 10 V across R2 and Rload.
The circuit on the left in the schematic below is the one being tested. In this case R1, R2, and Rload are all 10 kΩ. As R2 and Rload are connected in parallel their effective resistance is 5 kΩ. R1 being 10 kΩ gets two thirds of the voltage because R2 || Rload is 5 kΩ getting one third of the 30 V being 10 V.
The Bang Preventer – aka DIY Current Limiter with isolation transformer
I asked Tony359 about his current limiter and he referred me to the video below in which he explains his home made contraption. Very cool. I think I should make one of these.
Update: I also found a video covering a similar topic:
The voltmeter used in the second design is this one: Digital AC Voltmeter.
Oh, and here’s another one!