Are Brushless Hub Motors External Rotor Relunctance?

Started by Bret Cahill in sci.electronics.basics4 months ago 1 reply

Don't want to google this one.

Don't want to google this one.


Math Challenged.

Started by Anonymous in sci.electronics.basics4 months ago 11 replies

I know I am losing it, but I want to bring it back. I have screwed up some things. Figuring out a roll of wire, I had 95 turns of about 12"...

I know I am losing it, but I want to bring it back. I have screwed up some things. Figuring out a roll of wire, I had 95 turns of about 12" diameter. I thought pi was times radius, and that is because of not using it. And then I thought there was 1,700+ feet in a box that came with 1,000 feet. I had forgotten to divide by 12 to get feet out of inches. Losing it. Someone jus


It worked !!!

Started by Anonymous in sci.electronics.basics4 months ago 10 replies

My shop is a steel building similar to a quonset hut. The pipes to my bathroom sink run down inside one of the deep corrugations....

My shop is a steel building similar to a quonset hut. The pipes to my bathroom sink run down inside one of the deep corrugations. The bathroom walls are covered in drywall which in turn is covered with thin sheets of vinyl covered Masonite. I insulated the pipes before covering them with the drywall. I then put insulation down inside the corrugations to insulate the walls. But I thin...


Rare Earth Motors Not Necessary for EVs

Started by Bret Cahill in sci.electronics.basics4 months ago 8 replies

Just use the cheap low power low power density 10 kW motors that have been around for decades. If you want to scoot through intersections and...

Just use the cheap low power low power density 10 kW motors that have been around for decades. If you want to scoot through intersections and accelerate to freeway speeds in seconds use compressed air for short bursts of 100 kW power. This technology has already been proven by UPS and Peugeot. Bret Cahill


Where to download FREE manuals for newer electronics?

Started by Anonymous in sci.electronics.basics4 months ago 10 replies

Most of the manuals for the very old electronics, especially tube gear, can be gotten online for free. But I am looking for a manual for a...

Most of the manuals for the very old electronics, especially tube gear, can be gotten online for free. But I am looking for a manual for a newer piece of equipment. All I am finding are bogus websites that try to get me to download something else, or sites that want payment for a PDF file download. I did find one site that actually had the manual, but it was written in a foreign language ...


Solar storm could strike Earth Thursday: What you need to know

Started by Mr. Man-wai Chang in sci.electronics.basics4 months ago 2 replies

Solar storm could strike Earth Thursday: What you need to know Full story: A solar storm is forecast to hit Earth early Thursday after...

Solar storm could strike Earth Thursday: What you need to know Full story: A solar storm is forecast to hit Earth early Thursday after the Sun unleashed a powerful solar flare ? a burst of high-energy radiation ? Sunday night. NASA?s Solar Dynamics Observatory Satellite cap


The special data device SpaceX's Falcon Heavy sent to orbit is just the start

Started by Mr. Man-wai Chang in sci.electronics.basics4 months ago

The special data device SpaceX's Falcon Heavy sent to orbit is just the start Full story: On board the Tesla Roadster that Elon Musk...

The special data device SpaceX's Falcon Heavy sent to orbit is just the start Full story: On board the Tesla Roadster that Elon Musk sent hurtling towards the sun, aiming for a long, leisurely Earth-Mars orbit, there were a few pieces of miscellaneous cargo. A so-called


How do I dial these phones

Started by Blondie in sci.electronics.basics4 months ago

I hope this is the right place to ask this. My mom gave me head phones for Christmas. They dont look like any other phones and dont have...

I hope this is the right place to ask this. My mom gave me head phones for Christmas. They dont look like any other phones and dont have a screen or dialing buttons. I want to make a call, but how do I dial on these phones. Another thing, the plug on them wont stay plugged in the phone wire thing on the wall.


Removing battery corrosion

Started by Anonymous in sci.electronics.basics4 months ago 19 replies

I got an old AM-FM pocket transistor radio which looked good and clean till I opened the battery compartment. Very corroded carbon...

I got an old AM-FM pocket transistor radio which looked good and clean till I opened the battery compartment. Very corroded carbon zinc batteries were in it. After removing them, I cleaned off as much of the corrosion as possible by scraping with a plastic stick, and scrubbing with q-tips and rubbing alcohol. That got rid of most of it, and I was surprised to find the battery clips are not ba...


China Capacitors are Radioactive

Started by Decoder in sci.electronics.basics4 months ago 29 replies

China is intentionally trying to kill Americans with radiation. This radiation is the number one cause of cancer and other diseases. China is...

China is intentionally trying to kill Americans with radiation. This radiation is the number one cause of cancer and other diseases. China is adding radioactive material to all capacitors that are being shipped to the USA. This substance is harmful to be around at all times, but it becomes much worse when electricity is applied to these capacitors. Besides the threat of cancer, radiation redu...


Ask a Question to the Electronics-Related community

To significantly increase your chances of receiving answers, please make sure to:

  1. Use a meaningful title
  2. Express your question clearly and well
  3. Do not use this forum to promote your product, service or business
  4. Write in clear, grammatical, correctly-spelled language
  5. Do not post content that violates a copyright