Latest threads in Hobby Electronics Basicsshow only best voted threads
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Really Basic Power On Question
This must be a really really common problem and the only reason it is diffi cult to find on youtube is the wrong search terms: If a device has a power on button latch switch and you want it to turn on...
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2 years ago
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3 phase AC to DC
I am running 3 phase AC into a set of transformers, Y config, and thence into bridge rectifiers . One leg of the output side of the transformers goes to the diodes. the other leg to the Y connection....
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2 years ago
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Use resistor instead of regulator?
If the capacitor is needed there probably are problems. In the spirit of your question that is all I will say.
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2 years ago
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Ten 860v Electric Eels Wire Themselves In Series
"For The First Time, Electric Eels Have Been Seen Hunting And Zapping Prey as a Group" Maybe not.
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2 years ago
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Full wave rectified source for DC motor
I need a sanity check - I think I understand, but there's doubt. If I rectify AC with a bridge and use the full-wave output to power a DC motor, it's not the same as using "pure" DC. There is an AC...
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2 years ago
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Even After Musk Tried To Dump Tesla the Market for EVs Was So Overwhelming It Still Put Muck On Track to Become the World's First Trillionaire
Earlier last year B-H dumped airline stocks because no one was calling up for a loan. Buffet/Munger figgered that if the executives had no faith in the industry . . . Now we found out one of the...
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2 years ago
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Why So Many Products With Poorly Designed Parts Still Do the Job
At first you wonder how they got the difficult part correct and screwed up the easy part. The parts that fall apart aren't really necessary so you can still use the thing. Often it is better stripped...
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2 years ago
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Cheap Chinese rubbish
An LED striplight. After 1 month, BANG! A puff of smoke and a hole blown in the side of it. What I think used to be an inductor has exploded with enough force to rupture the casing. Funny thing is, it...
28
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2 years ago
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28 | |
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Remote On Switch for Devices
I don't want to have to be there to turn on the cam. Instead it needs to be turned on by a relay. If necessary I will invade the flip flop on off switch but I'm pretty sure they have figgered out a...
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2 years ago
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Rope Light Circuit
The sealed-up-in-plastic power supply comes with the plug, 110v U.S. or 220 v EU. On a 110 v AC U. S. plug the output appears to be 110 v DC and 220 AC on a volt meter. The LED part of the rope light...
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2 years ago
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Power Routing Switch
Working on a gadget that uses a 12 volt motor (10 amp peak) and misc electr onics running on lower voltages. It is powered from an external PSU like a laptop supply, but 12 volts. There is also a...
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2 years ago
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EV Stocks On Fire
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2 years ago
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Amateur alarm circuit problem
I built an alarm circuit from a book I bought called Make Electronics by Charles Platt. The said circuit produces a siren type sound on a buzzer so I added an led through a resistor, a 10k pot and a...
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2 years ago
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PCB Motor: 97% Efficiency and 12 kW/ kg Power
Also easy to retool the plant for different size motors.
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2 years ago
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Power supply trips CU
I bought a 12volt 8.5amp TDK Lambda power supply from Radio Spares to replace a Mean Well 12v 8.5a supply which had failed after 3 years. I connected it up to a 3 pin plug with a 13A fuse. When I...
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2 years ago
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