Відео

Newbie question: why the output has just one terminal? Where are the positive/negative that I should connect to a jack, for ex. Thank you!

Would this be the same for the FT8900R

Great video. I'm interested in replicating your power supply for use in an electrospinning device that requires between 10 - 30 kV. However, most commercial power supplies (such as the SKE EF020) limit current to around < 1 mA. Is it possible to reduce the current in your design whilst maintaining high voltage?

The gmc 300 geiger counter measures wrong with usvh, its only cpm that works accurately

We don't want anything American, but thanks anyways

Perfect: Keeps your food warm for the next 30,000 years.

I am a student studying flicker noise, is the y-factor method valid for measuring flicker noise?

If you have a FLIR camera, you can try to see the beam itself. Perhaps some smoke is needed too.

Is this under black light or is this emitting light with hydrogen peroxide?? So pretty! I mixed rhodamine b and fleuroscine with rubbing alcohol but never hydrogen peroxide..

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I wish to see an updated version, please do it!

You are an amazing teacher

I need this!!!!! There is a tutorial????

I guess this is a receiver How about a transmitter ?

Those bubbles slow down the etching a lot. If an aquarium air pump is added to mix the etchant the process takes minutes. I've built a flat tank from acrylic for this purpose, it reduces the amount of liquid needed and placed the outlet of the air compressor at the bottom. The liquid gets stirred extremely well.

Nice setup, these Chinese laser tubes are cheap but dangerous due to their highvoltage wiring and safetyless HV power supply. 30kV with no proper HV shielded cable and a return path to the power supply housing is a deadly combination. Water ports are fragile. Life time is abit over 1 year then to the trash. Beam has usually side lobes and not pure gaussian, so this thing good for average quality production in job shops.

Very interesting video! Not sure if this would be something you are interested in or have the time for but I would really appreciate much simpler and in detail versions of these videos. An "explain me like I'm five" version so to speak. Questions to answer could be: What actually is a LNB? What does it do? How does a horn antenna/waveguide work? How does the amplification work? And how does the signal look like that is being amplified? What does K-Band mean? There are a lot of channels explaining the basics of electronics but I think application-oriented explanations would make these theoretical lessons much more interesting. I know your channel is probably for viewers with more knowledge about electronics. So it's just a suggestion :)

🛰📡

Are the 38khz sidebands AM modulated? (prior to FM modulation of the whole signal for transmission) If so, that's kind of funny that FM stereo contains an AM component.

Interesting IC. It replaces the dielectric oscillator, mixer, amplifier, voltage comparator and 22kHz detector. 20 years ago this would all be discrete components.

My good sir, 2024 remake with a side of schematic please

"2024 Remake" please ;-) Am I the only one ? And of course "Schematic". is always handy ! Thanks !

Can anyone please tell me which resistor can change the gain or the output level of the pre-amp?

Chemistry 🤩🤩🤩

I remember having a drawing of how to use a spark plug on a marine motor to make an emergency radio signal......kept the small drawing in my billfold during my boating years but lost it. would like any info on making an emergeny xmitter using an outboard or inboard marine engine

Thank you for the kind words! Good luck with all your future projects!

I grab you 😆

fyi, a CO2 laser is around 10 micron (mid-ir) wavelength and cannot be frequency-doubled to produce green light. to achieve this effect, your source laser must be around 1 micron in wavelength.

Arduino giga is still to expensive , with that price we can can get direct multi effect guitar

Thats helpful, thanks!

I really enjoy seeing other peoples labs :)

Do you have theory for building a PCB Wilkinsion N Way combiner 50 ohm in, 50 ohm out, w-4KW RF Output???

Nice Video of Wilkinson theory! If I am making a combiner for 88-108MHz, how do I make the combiner wide enough to pass the Full 88-108 RF spectrum?

back to EE101 for me!

cool. i was correct with the graph not extending enough😅

2024 remake