I'm just outside Houston, pretty far out of the way. It'll be weeks before center point can get to us, and we have a downed line in our yard that's very dangerous to be near. Grandpa got shocked trying to turn off the main breaker, but I at least have electrician grade boots and equipment to work with.

I need to shut off the power at the street so we can safely hook up the new generator to our main. We have a lot of young and baby animals here that will die without power, we have them on an old generator but it's not going to last continuous for weeks. We need to move them onto a generac we've previously installed but haven't yet connected to the building.

So, is there a safe way for a civilian to shut off power at the street?

Didn't use a more aggressive solvent as hopefully fuel diesel can't desolve the enamel insulation, like more aggressive petroleum distillates, also cheap. One day after immerseing half an inch of the tar is soft as cream.

So i did my first zvs circuit, and was all happy to test it out, the only power supply i had was an old atx, i firstly powered it on 5v and the atx was humming more intensively, but there was no arc on my flyback transformer, so i tried it on 12v and the atx couldnt handle the load so the overload protection kicked in, then i found on yt some guy talking that i should just short two pins inside the atx at the optocoupler or idk how tf to spell that, so i did this and now my atx screams at me with high pitched sound and there is no voltage on the output...

I'm from r/radiation, and someone there mentioned that when talking about x ray machines, r/radiation is more worried about the high voltage, and r/high voltage is more worried about the x rays. So I was curious, what is everyones opinions on x rays, and what kind of safety advice would you give to someone doing x ray projects? (I'm not looking for advise for myself, just curious about the differences between the two subreddits)

does anyone want them

I've made a 555 circuit driving a CRT TV flyback. With 12V input I got arcs about 2cm long.

I then connected a high-voltage wire to a light bulb filament (found in a microwave oven), and put the other wire to the glass surface of the bulb. In the dark, a small plasma jet can be seen at the end of the wire, along with a fluorescent green glow emitted by the glass.

Is this glow caused by x-rays or just UV?

(The picture is quite dark, but the glow is more visible in real life.)

https://preview.redd.it/sudidx928hyc1.jpg?width=4608&format=pjpg&auto=webp&s=4e0aeeace5ea3ad7bad763cf7b196e032bed30fb

https://preview.redd.it/7qgbxx928hyc1.jpg?width=4608&format=pjpg&auto=webp&s=203fe74180c9e6e05f91c249f65859daabfb7229

A little while ago I posted on here about a vacuum tube flyback driver I made. I put all the components onto a prototyping board this evening amd was using it, when all of the sudden the output tube started arcing internally. It was like a wave travelling down the tube, arcs of about an inch long. Circuit still works fine, and the tube should only have had about 350v on the plate, but I'm still wondering if I accidentally made x-rays? If so I'm probably not using this again

I want to build a quad mot tesla coil, but I need help to choose the size of the secondary, I was thinking about 8". What proportion should I use 3:1 or 4:1 and how many turns should it have? And what the effects of these changes.

Sorry for my English

Can someone give me some links for what ever this thing is please "HV power source such as a NST, OBIT, or other transformer that gives off at least 9 kV at around 30 mA."

(Note that a 47 ohm resistor between MOSFET gate and driver IC output is not shown.) I originally was driving the MOSFET with a simple 555 timer circuit, but was experiencing heating that would eventually destroy the MOSFET(yes I was using a heat sink and was cooling it with a fan). So I decided to buy a dedicated MOSFET driver IC because I thought that the heating might have been because of inadequate switching because of the low output current of the 555 timer. I also wanted to be able to control the switching frequency better and the cheapest option was to program a simple ATTINY85 sketch for the oscillator. However this did not reduce the heating in the MOSFET. The MOSFET driver IC ended up destroying itself after a short period of time and of one of my test runs actually destroyed the MOSFET when it fried itself. What could be causing this and how do I reduce heating in the MOSFET? Thanks in advance! :)

Hello, I found this circuit diagram of a flyback driver using a gate drive transformer on the internet:

https://preview.redd.it/6mvrh544s9xc1.jpg?width=2178&format=pjpg&auto=webp&s=edf6a4861e517b8b5a6976464ba8fa098609ddaa

I'd like to understand how it works. I drew the path taken by the current when it passes through one MOSFET, and then when it passes through the other MOSFET.

I'd just like to know if it is correct.

Current passing through Q1

Current passing

Just finished soldering all 40 caps mounted onto acrylic.

I am trying tho build an powerfull zvs driver now I have tried MOSFETs but I am using an 100amps 12volt supply and even when I soldered them in parallel I broke them. I started researching and found out that igbts are good at hig courtent applications and I tried tho build an zvs circuit. I am using an ajoustable circuit(1hz-150khz) and an bjt for an 16v signal. I assembled everything and I found out that the igbts have an on resistance of 22ohms even when I connect I only get 11 ohmes wich means I am only using like 1 ampere from the 100a I could use. I thought about using an higher voltage the igbt are ratted up tho 600v but does an way exist tho decrease the resistance ?

Vacuum tube flyback driver I made yesterday. I used a single section of a 6u10 tube and a 6lb6 tube. The circuit is self oscillating, and oscillates just about in the audible range. I can't really measure it since the waveform looks really weird and my scope can't recognize it. It operates on a voltage doubler so the B+ is somewhere around 350 volts. Makes some nice corona discharge, and the blue glow of fast electrons in the 6lb6 is pretty nice.

Hi,

I managed to build a HV transformer with a 555 IC and an IRFP450 MOSFET, converting 5V (or more) to thousands of Volts.
However, I've already burned several secondary coils due to the voltage being too high.

Where can I find a sturdy secondary coil, whose turns are insulated enough not to arc between each other?

I'd like to add a voltage multiplier, so a CRT flyback transformer wouldn't be suitable (I've heard there's a diode inside).

Thank you for your advice!

The lenght of the spark between the spheres is only about 3.5cm, something is reducing the voltage for some reason