Thanks for the ferrite advice

Started by Anonymous in sci.electronics.basics7 months ago

I just wanted to say thanks for the advice on my ferrite filter question. Since the machine is working with my washer kluge I'm just going to...

I just wanted to say thanks for the advice on my ferrite filter question. Since the machine is working with my washer kluge I'm just going to swap the ferrite ring for the washers and call it good. I don't know how sensitive the control is to noise from the sense wire but I think it should have something better than the washers solution just because the manual shows the filter. Thanks, Er...


Electrical, Not Mechanical Separation, Finally Make the Liquid Sodium Battery Practical

Started by Bret Cahill in sci.electronics.basics7 months ago 9 replies

One serendipitous breakthrough: https://cleantechnica.com/2018/01/26/mit-group-may-solved-liquid-sodium-battery-conundrum/ Bret Cahill

One serendipitous breakthrough: https://cleantechnica.com/2018/01/26/mit-group-may-solved-liquid-sodium-battery-conundrum/ Bret Cahill


Humor: Aulterra EMF Radiation Neutralizing Whole House Plug

Started by default in sci.electronics.basics7 months ago 4 replies

This company claims to have a plug that you plug into an electrical receptacle in your house and it is supposed to neutralize harmful...

This company claims to have a plug that you plug into an electrical receptacle in your house and it is supposed to neutralize harmful EMF radiation! They get $50 for this too... Product description The Aulterra whole house plug fits into any electrical outlet to retune the wiring. Also, it prevents outside EMFs from getting into the house. One Aulterra whole house plug works for mos...


Motion detector

Started by Andy in sci.electronics.basics7 months ago 8 replies

I am looking to build a motion sensor. https://www.jameco.com/z/VMA314-Velleman-Passive-Infrared-PIR-Sensor_2245440.html I know it needs 5 V...

I am looking to build a motion sensor. https://www.jameco.com/z/VMA314-Velleman-Passive-Infrared-PIR-Sensor_2245440.html I know it needs 5 V dc input. What else would I need? Thanks, Andy


Ferrite filter question

Started by Anonymous in sci.electronics.basics7 months ago 4 replies

Reecently I helped a neighbor connect a Chinese made CNC plasma table to an American made plasma cutter. After I figured out that the "partial...

Reecently I helped a neighbor connect a Chinese made CNC plasma table to an American made plasma cutter. After I figured out that the "partial pressure" the Chinese manual mentioned was in reference to a built in jumper selectable voltage divider I was able to get the two machines talking to each other and everything works now. But the Chinese manual shows a filter on a sense wire and I don...


Soldering kit

Started by Andy in sci.electronics.basics7 months ago 18 replies

I have been soldering for a lot of years, but all I had was a single 30W temp iron and no desolder gun. My new kit will have adjustable heat...

I have been soldering for a lot of years, but all I had was a single 30W temp iron and no desolder gun. My new kit will have adjustable heat and a desoldering gun. That will be nice as it's been a bear trying to wick up solder and sling it away. I have been using my bench grinder brush to clean my tips. My current tip is at least a year old, but still heats great. What do you use ? ...


Can someone translate this ? Russian to English

Started by gm in sci.electronics.basics7 months ago 11 replies

Hi to all. College of mine bought some Chinese motor controller but i can get any addition infos on Chinese site. Luckily i found that someone...

Hi to all. College of mine bought some Chinese motor controller but i can get any addition infos on Chinese site. Luckily i found that someone in Russia is using the same controller and he has wrote how to connect, but it in Russian language. Can someone please translate this ? https://ibb.co/i6zZ6w Thank you in advance !


Tax Advisors |Accounting Services | Zoho Setup in Hyderabad.

Started by Ratalu challagolla in sci.electronics.basics7 months ago

WE ARE INCOME TAX ADVISORY SPECIALISTS Year-round planning is the key to preserving your bottom line. We are your complete Tax Advisory and...

WE ARE INCOME TAX ADVISORY SPECIALISTS Year-round planning is the key to preserving your bottom line. We are your complete Tax Advisory and planning resource. Minimizing your tax liability is our main objective and that begins with consistent planning. Our accountants will assess your current situation and implement tax saving strategies to guarantee you’re taking full advantage


Looking for a good way to compare CR2450 batteries

Started by Anonymous in sci.electronics.basics7 months ago 7 replies

I use enough CR2450 coin cells in equipment in my shop that I think it makes sense to test a few brands against each other to see which is most...

I use enough CR2450 coin cells in equipment in my shop that I think it makes sense to test a few brands against each other to see which is most economical. I don't know enough about how to load different battery chemistries to test the batteries. But I was thinking about just using an LED and a resistor combination so that the battery would drain to some particular voltage in about a month. ...


dying trees

Started by Jasen Betts in sci.electronics.basics7 months ago 19 replies

As is seasonally traditional, we recently had a dying tree in our house the tree had no roots, the base of the trunk sat in a vesel of...

As is seasonally traditional, we recently had a dying tree in our house the tree had no roots, the base of the trunk sat in a vesel of water, and if the water is not kept topped up the tree dies before the end of festivities. So I decided to instrument the plastic vessel to confirm water level, I placed with a couple of strips of copper tape where they are unobtrusive wired up an NE555...


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