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There are 35615 individual articles here that are part of 5223 discussions
Please see below the list of the most recent and the best rated articles in General Electronics

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The most recent discussions

phone antennas

August 17, 2021, 11:43 pm

Do cell phones contain a separate antenna each for phone network, Wi-fi and Bluetooth? Also, does Bluetooth include any security? Like, if a user is listening to his music through a Bluetooth li... Read more »

battery charger

July 18, 2021, 12:19 am

I picked up a AAA NiMh battery charger. The label reads: Output: 1.2 V 800 mA AA/AAA charging: 120 mA Why the two different current specs? Does not compute - -- Rich Read more »

solution manuals

June 30, 2021, 7:43 am

Solution Manual Modern Robotics : Mechanics, Planning, and Control (Kevin M. Lynch, Frank C. Park) Read more »

automobile remotes

February 16, 2021, 10:24 pm

A question concerning the car remotes; door lock, headlights, etc. Each car/handset must be a matched pair, regarding the ID and security codes. Obviously only one car in the parking lot ought ... Read more »

ICETech Micromaster LV

February 2, 2021, 6:31 pm

I have one of these things sitting around in my workshop but so far I have been unable to make any sense of it, so rather than chuck it in the skip I am offering it free to anybody who might want... Read more »

Ancient refrigerators

January 8, 2021, 4:43 am

How did they make ice, in the days before electricity? And did they figure it out empirically, prior to the development of thermodynamic theory? ? Rich Read more »

Power Routing Switch

December 7, 2020, 4:27 am

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 ... Read more »

warm air

November 18, 2020, 9:37 pm

A nearby college includes a building, surrounded by an outdoor arcade, at street level. At one point, the warm internal air is expelled, which is natural, they perform continuous circulation. A... Read more »

C.Crane radio antenna problem

November 14, 2020, 5:10 am

Hi, I have a C.Crane Witness + Radio. It has a tivo-like function and can record broadcasts to mp3 files on an SD card. The antenna fits into the headphone jack and is about 2 ft long. The recep... Read more »

Lime skates

September 14, 2020, 8:46 pm

I looked at one of those Lime electric skateboards. It has a QR code sticker, and no other user interface, that I noticed. I never rented one, and wonder how the system works, the network stu... Read more »

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The best rated discussions

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LEDs Series-Parallel OK?

[ 2 ]

Connecting LEDs in series-parallel like the ASCII schem below is okay? I don't see any reason why it shouldn't work. If a lot of LEDs, like the 7 below, are paralleled, the total current for each... Read more »