This is a clever approach to making a portable air pump. Whether you need to aerate something while travelling or have an emergency battery backed or solar powered air source, this unit could be useful.
It's based on what appears to be a standard pump with a very minimalist cover, and current is low - especially after a little hack.
I'm not sure what overall lifespan this unit has for continuous operation. The weakest points may be the rotating offset pin-cam or the motor brushes.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- http://www.bigclive.com/coffee.htm This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty. ... https://www.youtube.com/watch?v=7l1we5gorRM
I'd like to thank Ian and Attila for sending me a candy selection from Germany, Slovakia and the Czech republic. There are some very interesting flavours and some absolutely horrific ones too, but in a good more-ish type of way.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
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https://www.youtube.com/watch?v=yxtxb7w8zSQ
This seems to be a very common little light. It clips onto your phone to provide illumination from all directions and avoid shadows. This one came from a UK Pound shop called One Below, and cost around £2. Not bad for the functionality and components.
I've tried this style of light for macro shots, but it tends to give a lot of reflections in shiny objects. For my PCB photos I use a much wider ring of LEDs.
It's interesting that the PCB clearly has the functionality of being USB rechargeable for use with a lithium cell. Although those component positions were unpopulated I still reverse engineered that area and added it to the schematic.
Both parts of the assembly are well worth the small cost of the unit. The LED ring can be powered directly from a USB supply with suitable resistors to limit the current to around 360mA (36 LEDs at around 10mA) I'd guesstimate around 5.6ohms at 2W.
There's one component position I didn't mention. The resistor between the gate/base of the transistor and 0v rail. It's for a pull down resistor to allow the use of a MOSFET.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
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https://www.youtube.com/watch?v=On3xDIBVYp0
That awkward moment when you "accidentally" change the polarity of the capacitor in your fake fuel saver plug. (And drill some extra vent holes for the boom.)
See the full teardown video here:-
https://youtu.be/KUGp1u8vfm4
#shorts
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https://www.youtube.com/watch?v=HQNBw5d5lyY
I was using this tape above my computer for ambient illumination. Over time it imperceivably changed from warm white light to a dull orange glow.
When it got the point that I couldn't identify component colour bands I decided to take a closer look.
The gel they use to make it waterproof (more like splash-proof) has degraded through exposure to the blue/violet wavelength of the light. Directly above the LED chips it had gone so brown that it was blocking and colouring the light. Initially I thought it was the phosphor that had degraded, but when the coating is cleaned off the LED it is as bright as when new.
The LED strip was being under-run for long life, but it shows that the LEDs themselves aren't the only factor in optical degradation. This is a good reminder that you should always treat LED tape as a consumable, and ensure it can be replaced easily in the future.
Here's the original video where I hacked the LED into an old strip light:-
https://www.youtube.com/watch?v=7_ds5XFJvPs
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
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https://www.youtube.com/watch?v=UhmUxj9RJus
I knew this might be a long video, but it's possibly the longest I've ever recorded. It's definitely one where you might want to grab a nice drink and some cookies then snuggle down for story time.
Here's a link to a video of John Noakes climbing Nelson's column:-
https://www.youtube.com/watch?v=HW3daihiY30
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
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https://www.youtube.com/watch?v=_0Tju5M-8yU
On one hand you'd think that moving from an old fashioned tungsten lamp to a modern LED one would save power. And you might think that the new rugged LED lamp will be more reliable than the old tungsten one. Let's check that out. Bonus hot air soldering fail.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
...
https://www.youtube.com/watch?v=_AuC5dlJB3E
I didn't realise until recently that the USA defines sherbet as a sorbet with dairy products. In the UK it's a fizzy power used in sweets (candy).
I would guess that it must exist under a different name in the USA, but if not, then here are a couple of super simple recipes to bang some together to try for yourself.
Normal version:-
1 teaspoon of bicarbonate of soda (sodium bicarbonate).
1 teaspoon of citric acid.
3 teaspoons of icing sugar. (Very fine sugar with 3% corn starch.)
Extra sour version:-
1 teaspoon of bicarbonate of soda.
2 teaspoons of citric acid.
3 spoons of icing sugar.
For both recipes, just mix the powders together thoroughly and it's done.
A blender or grinder could be used to create a much finer mix.
The sherbet powder can be used as a dip for licorice or lollipops, or you can add two heaped spoons to a glass of cold water and mix for an instant fizzy drink.
The ingredients of the Barratt Sherbet Fountain (including the licorice) are listed as:-
Sugar, treacle, wheat flour, cornflour, sodium bicarbonate, citric acid, tartaric acid, colour (caramel), liquorice extract, tri-calcium phosphate (anti-caking agent), aniseed oil.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
http://www.bigclive.com/coffee.htm
This also keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty.
#ElectronicsCreators
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https://www.youtube.com/watch?v=ch2Xly3RY3Y
As we enter the last third of the year, which is one continuous Halloween and Christmas season, the local pound shops (UK dollar stores) have started introducing their seasonal stock.
In this case it includes this lovely LED string USB charging cable with an exciting new approach to driving LEDs. It's interesting to note that while these came from One Below, they're echoing the equally disastrous version sold by Poundland in previous years.
If you buy these lights, do it for the caps alone. They're easy to remove once the LEDs have melted the glue!
It's intriguing that the LEDs initially survived, but after some use their current dropped notably due to internal degradation.
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https://www.patreon.com/bigclive
#ElectronicsCreators
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https://www.youtube.com/watch?v=O5OOzUsIThg
This is what you do when a product doesn't do what you want.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly (and interbreeding) at:-
http://www.bigclive.com/coffee.htm
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https://www.youtube.com/watch?v=tMZRHVQLOdk