@rdtsc Have you ever put a USB Bluetooth to battery charging module in something before? I am working on my audio amplifier which powers 2 16 ohm speakers on there own 100 watt outputs. I have the power source as a bay of 18650 lithium ion batteries. Its 4.4 volts max with 13,600 mAh's. I tested the definite runtime at 15 hours already. And I'm very confident it could have done another 10 hours after that.
@rdtsc Yes I know I could have used a 5,000 mAh battery and used 4 in parallel to get the same voltage output and even higher mAh's. Which would end up being 20,000 mAh's which is 1.4 times longer life time.
@VoltageSpike I did something around 12 this afternoon and I thought about your logo and my experiment I've been working very hard on perfecting. Let me tell you. One sec...
@VoltageSpike I used 10,000 volts AC at 10 amps to cut through a ferrite magnet in less than 1 second. You basically put 1 wire on one end then another on the other end. So it cuts wherw you want it to. Lots of people use special bits or grinders that don't get the job done very well. There are always not cut very straight.
@VoltageSpike So I cut a ferrite magnet with just about an almost perfect cut. The cut might have messed up because I moved. But if I didnt move it would have cut it perfectly straight. I can already see amazing industry uses for this already.
I have to use high voltages because the ferrite magnet and its elements are not conductive in the way they are combined. But alone the iron is conductive.
And current well it heats the material up therefore breaking the bonds and cutting it.
@VoltageSpike & @rdtsc & @Shalvenay & @W5VO & @JRE I've always wondered something about history. What would our power outlets look like and what kind of power would we have in our homes or in power plants if we did use DC instead of AC? I want facts or opinions.
@ScientistSmithYT 125/250VDC busses were and sometimes still are a thing, but I doubt electrification, especially in rural areas, would have really taken off in that alternate timeline
we'd have outlets that are a fair bit beefier than the current NEMA receptacles, too
likely not only switched, but interlocked so you couldn't unplug them with the power on
What would home, shop and warehouse fuses be rated at?
What components would be in the transformer box besides the transformer? Like we have the block that is used on laptop power cords to convert the AC-DC then control it further then it goes into your laptop.
Would DC through powerlines create more heat and therefore we would need even higher voltages than we already have? Like for example we have 1 million volt powerlines today. Would the DC version of the 1 million volt lines be around 3 million or something like that?
Speaking of powerlines I went to a HV electricians course recently and they told us that 1 million volt powerlines carry 800 million amps. If we do the math that's 8 quadrillion watts of power.
It took me a second to calculate and convert it.
I wonder if that is enough power to make a time machine. :)
@ScientistSmithYT probably in the 10-20 range for things like shops/storefronts and the like. large stuff like big-box stores, malls, and the likes would have on-site generating stations
They originally had this wire for 240 VAC on a 200 amp breaker. This is the same wire feeding the outlets you see at airports now. This same wire fed the lights, computers, and jet-way.
Would it have enough to feed my demands that my industrial laboratory needs. Its fed 20 kV at 5,680 amps. All I have are 100 amp beakers minimum in my laboratory. Because anything less won't let anything work. My laboratory was made to allow for another 100 kV at another 25,000 amps. But right now I'm only using around a little more than a few megawatts in a month.
Man fusing properly with a metal melter is hard. It takes real actual talent. Unlike the talent needed to wire transformers, re wire them, modify them, and even voltage multiplier circuits. Ive been doing it a lot and trying new things every single time and I'm still bad according to me. Others say I'm great at it, but to me I suck. Just plain suck at it.
Its nothing like welding TIG, MIG or stick. Welding stainless or aluminum is nothing compared to this.
Wow! I just woke up in my chair in the shop, I believe its time to retire for the night. I guess this shows just how hard I work. People always tell me I don't work hard, but they don't see me working and working until I wake up because I've fallen asleep. Night y'all.
I figured out the way I'm going to connect the circuit on my bike. I'm putting the battery pack near the bottom half then connecting it to the frame. And then driving a bolt through the frame of the bike. And connecting it there. I'll have an AC switch that when turned on will tell you its ok. The switch will light up. This is the switch I'm using.
I'm only using that switch because it can snap into things. And its what I have and its good enough.
I'm looking at a chip vendor's app note on PCB design, and they claim it's common to get 12:1 aspect ratio between board thickness and via diameter. That would mean a 0.133 mm drill on a 1.6 mm board, or .083 mm drill on a 1 mm board.
Is that really common now?
I've been designing with an 0.2 mm minimum drill for years (for 1.6 mm thickness), and I never heard from any vendor they could do better.
