Hi Dears, I watched this video and I'm very curious if this is a really storage or fake. I know that free Energy don't exist but this energy...

Hi Dears, I watched this video and I'm very curious if this is a really storage or fake. I know that free Energy don't exist but this energy storage is real? Video Youtube https://uii.io/Energy__Storager

https://www.vice.com/en/article/jg8wnb/square-dancing-noise-china Residents who are fed up with the noise from China's ubiquitous ...

https://www.vice.com/en/article/jg8wnb/square-dancing-noise-china Residents who are fed up with the noise from China's ubiquitous "dancing grannies" are resorting to a special device that could mess with the speakers that blast out loud music. They use an infrared remote control dubbed "anti-square dancing magical device" to silence the noisy dancing troupes that have ...

I have a 9V 180 ma discharged Nimh battery that I am charging at 25ma. How long will it take to charge? Thanks, Andy

I have a 9V 180 ma discharged Nimh battery that I am charging at 25ma. How long will it take to charge? Thanks, Andy

Hello, I am an Alarm Technician among other things or stuff. I was thinking about installing a simple MOV on the Transformer that feeds...

Hello, I am an Alarm Technician among other things or stuff. I was thinking about installing a simple MOV on the Transformer that feeds power to the Alarm Board. The industry standard is 16.5VAC 40VA plug in Transformer. 120 Volt Input. Can anyone point to a specific MOV that would serve as a good lightning or surge protection if placed across the output terminals of the transformer...

I found this neat soft-start circuit on the eevblog forum. Its neatness is that the gate threshold voltage occurs immediately and then the RC...

I found this neat soft-start circuit on the eevblog forum. Its neatness is that the gate threshold voltage occurs immediately and then the RC softness kicks in. V+ ________________________ V+ | | 1M ___________ V- |___1u___| | | | |-- |------| |-- | V- ____________| As...

I'm working on a custom project that involves potentiometers and picture adjustments on the monitor they are connected to. To determine whether...

I'm working on a custom project that involves potentiometers and picture adjustments on the monitor they are connected to. To determine whether or not the potentiometers I need exist or if I need to build them, I need to resolve two questions and the possible issues they bring up. 1) This may seem like a crazy question, but are there low-friction potentiometers? (I'm referring to the physica...

:wºš'jئzØ^­ì±«â–V yÆ¥•çCŠ‡^N¢ž›ŠÖ§¶Ì­æ§{"µ¦åzZ-Â-zw^vÚ...

:wºš'jئzØ^­ì±«â–V yÆ¥•çCŠ‡^N¢ž›ŠÖ§¶Ì­æ§{"µ¦åzZ-Â-zw^vÚ z×!j¸u權\©¢È­Š÷¥ÊŠçz­Š÷¥É8^ÊX¤yÛh¦V²šë"q©\…¨«±h^©Þ«b½ç!j¸²Ÿµçm¡¨b‚«±æ­¶­Á«rêëz{hP)¢È­Š÷¦¢ø§Ú0Ÿ¬j[(ÔéÞu¬­…êÞÁêÞæǚ¶Çâ–WÂ+aè¶+Þ°­×bxI^rÚèž)ù…§

I have a 24v DC motor that I'm using with a PWM controller supplied by a 24v SMPS. I want to be able to briefly switch the motor to 48v with a...

I have a 24v DC motor that I'm using with a PWM controller supplied by a 24v SMPS. I want to be able to briefly switch the motor to 48v with a relay. I don't have a 48v supply, but I do have a 24v transformer & bridge. I know that the following will give me the 48v, and I think that the Motor Control will be OK with it. But I'd like to know if I'm missing something. The relay will d...

I have a DC relay with the coil connections marked "+" & "-". Does it matter? The relay operates with either polarity so there is no internal...

I have a DC relay with the coil connections marked "+" & "-". Does it matter? The relay operates with either polarity so there is no internal flyback diode. It's a 24v, 33ma coil for those who want to know. Thanks, Bob

Hello, In light of the cargo ship debacle in the Pacific, I am trying to determine which companies still manufacture semiconductors in the US...

Hello, In light of the cargo ship debacle in the Pacific, I am trying to determine which companies still manufacture semiconductors in the US and Europe. I found these: https://www.thomasnet.com/articles/top-suppliers/semiconductor-suppliers-manufacturers/ https://www.bisinfotech.com/top-ten-transistor-manufacturers/ Apparently Analog Devices is headquartered in the US but it's unclea...