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The most recent discussions

need help with an electromagetic field project


June 9, 2021, 1:54 pm

hello can someone help me with an issue am having while creating an electromagnetic field with 2 12v 320ohm relays. Read more »

Electric Machinery Seventh Edition by Stephen solution


March 15, 2021, 7:15 pm

I need to free solution pdf link , if anyone would like to help me contract my email. I will be thankful for this solving problem. Read more »

Dino DIni does electronic stream


February 11, 2021, 10:53 pm

Programming a PIC to flash LED's https://www.youtube.com/watch?v=-3rE1mqYsB4 -- Mike Garcia http://mgarcia.org Read more »

2 Black Reps Targeted? 2 Capitol Police 'Suicides'


January 29, 2021, 1:51 pm

Were Panic Buttons Removed From Democratic Lawmaker?s Office Prior to Insurrection? by Jessica Lee Snopes - Jan 14, 2021 -- https://www.snopes.com/fact-check/pressley-panic-buttons/ Were Pani... Read more »

HVDC line grounding system question


January 3, 2021, 6:03 am

There is a long HVDC power line from northern Quebec Canada to Ayer, Massachusetts USA. It operates at either +/- 375 kV or +/- 450 kV depending on source. As I understand it, it is grounded at e... Read more »

What kind of amp do I need


December 8, 2020, 6:44 pm

I bought a new TV and like most now, they don't have a line level output. I bought a digital to analog adapter to drive my remote amplified speakers but the line level out of the converter is so lo... Read more »

Power Factor Correction


November 19, 2020, 4:58 pm

Hello, everyone and if I may be permitted to revisit my question from a while back for which there was only speculation in the responses: On medium-voltage (say up to 69 kV) distribution lines, ... Read more »

1.5 VDC Pseudocell

  [ 2 ]
November 8, 2020, 9:08 pm

This project shows how to build a 1.5 VDC pseudocell to take the place of an AA sized battery. The mechanical aspect of this project offers the greatest challenge. The electronic portion utilizes ... Read more »

Composite video


November 1, 2020, 2:37 am

Dumb question Why won't a TV distribution amp pass this? It sounds like it ought to be up in the RF band. I have a composite video signal that is not happy being split so I put a TV amp in the lin... Read more »

electronic ballast woes...


October 7, 2020, 4:34 pm

One of my clients who is a hairdresser bought one of these cheap chinese sterilizers for sterilizing her scissors etc.which is actually a plastic box with a fluorescent lamp sans phosphor that em... Read more »

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The best rated discussions

Replacing brushes

rating: 5

People, I'm not sure if this is the best group for my query but I'lll give it a try. I have an electric lawn mower that was made by Sears way back in 1975. The nameplate rating is 120VAC - 10A. No ot... Read more »

How to flash an AC generator

rating: 5
  [ 2 ]

I bought a 6000 watt home generator new and ran it twice. Haven't had occasion to use it in the past 4 years. Started it up the other day and the engine ran fine but the generator won't produce pow... Read more »

Questions about a Motor Starting Capacitor

rating: 5

My garage door opener stopped working; it just hummed for about 2 seconds. For no particular reason I touched the starting capacitor and fixed it. It ran okay for a couple days, then stopped. I t... Read more »

Window AC unit questions Fridgidaire FAA087P7A

rating: 5

We just got a Fridgidaire FAA087P7A3 8000 BTU window unit to cool a garage area. It is equipped with a dongle type power cord which includes some sort of arc fault detector in the event the power c... Read more »

three phase panel - 240Y/139 instead of 240 delta

rating: 5

Given a circuit breaker panel rated for 240 volt delta, center tapped (which means 120 volts to ground for A and C phases, and 208 volts to ground for B phase), what is the chance this panel could wo... Read more »

Questions on series versus parallel outlets in garage/shop

rating: 5
  [ 2 ]

I have been learning a lot and realized I may have done a bad thing. I think I wired all my garage outlets in series. The first outlet is a GFCI, wires from panel go in the line side and all the othe... Read more »

How to disable charger circuit on APC UPS

rating: 5

Hello, I have this question posted in another group as well but I figured I'd give you folks a shot at it. I have two APC rackmount ups units. One is a 2200XL model which has a larger internal cha... Read more »

Microwave oven Diode Burnout ?

rating: 5

I need help from someone with an understanding of how Microwave oven's work. The high voltage diode in my Microwave has burned out three times now. While the original diode lasted years, the first re... Read more »

electric furnace blower motor

rating: 5

?A. U. Smith electric motor Model F48SH6MA4 HP 1/3 ROT CCWLE SER 8F94 RPM 1050 VOLTS 230 PH 1 AMPS 2.8 HZ 60 CAP 7.5 MFD 379 VAC 2-SPEED: BLACK: HI RED: LO ORANGE: LINE BROWN(+), BROWN/W(-): CAPACI... Read more »

Will 120v/60Hz microwave ovens run at 120v/50Hz?

rating: 5
  [ 2 ]

Question for the experts :-) Will 120v/60Hz microwave ovens run at 120v/50Hz? If not, why not? TIA rf Read more »

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