The original concept of air ionisers is attributed to a Russian scientist called Alexander Chizhevsky.
I thought I'd honour him with a build of an ioniser with a needle array styled on the Chizhevsky Chandeliers, which were large ornate metal frames with lots of ionising spikes on them, that were hung from the ceilings of large public buildings in Russia.
The needle array I ended up building for this unit is based on a disk of PCB material drilled with holes and fitted with a circle of needles. I'd hoped to bend the needles out at 45 degrees, but they turned out to be very brittle.
In reality, while the electrostatic precipitation of dust was a useful if somewhat messy effect, the ambient generation of trace levels of ozone and other short-lived active molecules prevalent in natural outdoor air was probably the real reason the ionisers gave a renewed freshness to the stale indoor air.
Here's a link to Alexander's Wikipedia page:-
https://en.wikipedia.org/wiki/Alexander_Chizhevsky
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
https://www.patreon.com/bigclive (extra streams and channel interaction)
Or alternatively:-
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
You can download the Minion PCB manufacturing files at this link, ready for submitting as a single file to a PCB manufacturer:- http://www.bigclive.com/freebies.htm
Here's the openscad script for the 3D printed diode former:-
//BCDC Diode lead former for ioniser/ionizer
difference(){
union(){
//main block
translate([0,0,0])
cube([30,19,4]);
}
//lead recess
translate([-1,9,3.5])
cube([30,1,1]);
//diode recess
translate([22,8,2.51])
cube([9,3,3]);
//lead guide
translate([29,9,-1])
cube([1.1,1,6]);
}
I thought I'd honour him with a build of an ioniser with a needle array styled on the Chizhevsky Chandeliers, which were large ornate metal frames with lots of ionising spikes on them, that were hung from the ceilings of large public buildings in Russia.
The needle array I ended up building for this unit is based on a disk of PCB material drilled with holes and fitted with a circle of needles. I'd hoped to bend the needles out at 45 degrees, but they turned out to be very brittle.
In reality, while the electrostatic precipitation of dust was a useful if somewhat messy effect, the ambient generation of trace levels of ozone and other short-lived active molecules prevalent in natural outdoor air was probably the real reason the ionisers gave a renewed freshness to the stale indoor air.
Here's a link to Alexander's Wikipedia page:-
https://en.wikipedia.org/wiki/Alexander_Chizhevsky
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
https://www.patreon.com/bigclive (extra streams and channel interaction)
Or alternatively:-
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
You can download the Minion PCB manufacturing files at this link, ready for submitting as a single file to a PCB manufacturer:- http://www.bigclive.com/freebies.htm
Here's the openscad script for the 3D printed diode former:-
//BCDC Diode lead former for ioniser/ionizer
difference(){
union(){
//main block
translate([0,0,0])
cube([30,19,4]);
}
//lead recess
translate([-1,9,3.5])
cube([30,1,1]);
//diode recess
translate([22,8,2.51])
cube([9,3,3]);
//lead guide
translate([29,9,-1])
cube([1.1,1,6]);
}
Back in the late 1980's, I bought a couple ion generators through the mail that had real good output, used about 4 watts. They gave me a free gift with them that I used till a few years ago. It was a pcb about an inch acrost and 2.5-3 inches long at one end was a small light, (maybe a neon?) And on the other, a metal pad, on the board, for your thumb. The light would blink in the presence of neg. Ions and the stronger, the faster the blink. It was great for testing how well your negative ion generators were working. I use to have a work area hood to pull air through a filter and in front of the filter, a negative ion generator and a florescent light. When the light was off, it would blink brightly about once a minite or two.
Do ionizing hair dryers work that same way? Would they be able to make a surface antistatic … repealing dust…by just blowing air at it? Ta
2ish years late, but FPGAs (at least the ones I'm familiar with) use look-up tables (LUTs) of about 6 or 7 bit inputs each. The logic is converted into a bunch of lookup tables and flip flops. Every clock cycle the logic propagates from flipflop to flipflop thru these LUTs and routing logic. They can also have special purpose "hard" logic, like more dense RAM, DSPs (multipliers and adders) and PHYs (physical ports for ethernet or PCIe).
That thing appears to be rather redundant and rightfully so because it's perfect for practicing or trying some new solder or breaking in a new soldering iron.
Watching you solder that board is very satisfying.
I too prefer solder wire that's as thin as hair. This ain't sweating pipe…
I don't know what that thing is, but it seems to do a really good job bending those circuit board components so you can insert them in the holes in the pcb and keep each one uniform to the others.
not a fan of your lead-free vs leaded points. "We use it in cars" is a bad argument…we dont use it in paint anymore and that was for all gains. we dont use it in children's toys and you could make the same argument there too "but we use it in cars!". I feel a more effective argument that wouldnt fall apart on delivery is to present your expertise-backed reasons.
I, for one, have no issues with lead-free at home. Less toxic stuff for a pet or kid to chew on, less lead to be stabbed with when soldering stuff and I catch a pointy lead. The whetting looks bad with the oxidation layer, but it holds and is electrically sound.
That, said, leaded definitely feels and looks way better, and I can solder it at a lower temperature. It is also stronger under sheer forces and cheaper. When I solder something in my Jeep, or lawnmower, or a busted gopro, I use leaded because it is stronger. Those make it great in a manufacturing setting. Though, the scale also presents the problems argued against it. The lead in the boards, often entombed in plastic, is not really an issue, though it does end up concentrated in landfills and seeps into groundwater in unnaturally high levels. The EXPERTS and technically proficient people in environmental study and toxin proliferation have pointed out that at manufacturing scale, the amount of lead being introduced to the environment and homes (from contaminated hands and clothes up to illegal dumping and mishandling) is causing problems (again, these are the technical people in their field…life long electricians are about as useful there as an expert chef would be in teaching you about current flow).
I dont think we should let wagon-makers determine if people should drive cars just because they are the experts in their field. I dont think we should let painters decide if we should stop using cheaper lead pain to paint my kid's room because he is an expert in his field. That argument just kinda irked me.
I know I am gonna end up down a rabbit-hole looking into it more out of curiosity. We aren't phasing lead out from a place of malice or ignorance (technical experts were definitely consulted AND vocalized their frustrations, and 'big industry' can buy enough politicians to make the whole idea die quietly…so there was SOME agreement).
I am too tired to be ranting, sorry, just irked me and I was in the mood…even though we are kinda on the same side hah
If we allow the technical people to make technical decisions, then we would still be using DDT pesticide and many other ecoligically-damaging pesticides
Fuck me Clife, That was a close shave, 🤪✍️😂
Hi clive. Just watched this video. I wondered if you sell the kit in your shop. As ever i always love your content. Thank you
If I may ask, why do you need the resistors before the output ?
I'm late in my seeing this video. I'm hooked on building an ionizer but in the US our 120v is not enough. Can a plug-in US 120 to British 240 converter work as a source? If so, can a British extension cord be used by cutting off the socket end and then be attach it to the electronics?
I was wondering…when you tested for negative with the DMM…would you get a much greater voltage if you attached a sheet of Al. foil on the meter lead over the fibers??
found it! 😉
Hi big Clive I'm an electronic engineering students I've used Proteus to design circuit boards but my students license is about to run out. what software would you recommend for circuit design ?
lead in your car battery has a decent chance of being recycled. as there is a good infrastructure around returning battery cores. lead on a circuit board is a real pain in the neck to recycle. it's an alloy so melting it down isn't great. and getting it off the pcb without just incinerating the pcb is really difficult.
every xbox 360 understands why you don't like lead-free solder