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There are 101612 individual articles here that are part of 9394 discussions
Please see below the list of the most recent and the best rated articles in Hobby Electronics Basics

The most recent discussions

Place Marker

April 20, 2018, 3:33 pm

That's right, in between the spam. Everything after this post is post the latest batch of spam, and everything before is...before. Read more »

(plastic) optical fibre

April 8, 2018, 12:05 pm

Hi, I want to learn a more and experiment with optical fibre, especially for communication. Does somebody here have any experience with this (at a hobbyist level)? There seams to exist a kit ca... Read more »

Torque Vs Speed curve of the Stepper motor

April 4, 2018, 4:31 pm

Hi, Does torque vs speed curve tell anything about the acceleration and deceleration characteristics of a stepper motor? Farah Read more »

Psu for valves

March 30, 2018, 5:09 pm

I wish to experiment with valves (or tubes, if you prefer) and I shall begin by building a power supply. What voltages (at what currents) should it supply? Where may I find circuits? Naturally... Read more »

mystery tool

March 25, 2018, 12:16 am

In a hardware store, I saw a rectangular bar, 10 long, with two through holes, labeled MAGNETIZE and DEMAGNETIZE. Presumably it has a battery compartment, though I didn't check. What's inside?... Read more »

Even Tesla Missed This Low Hanging Fruit Calculation

March 24, 2018, 3:25 am

Apparently there are some really basic [no brainer] calculations that everyone somehow missed. I can't say anything because I missed it as well even though I knew for years they were looking at fl... Read more »

Power for DC motor controller

March 5, 2018, 7:40 pm

I bought one of these 24v DC motor controllers: https://www.ebay.com/itm/311703088756 It came with zero documentation. I found the basic connections on the web, but nothing else. My question he... Read more »

Old Uneducated Me Again, Transistor Circuit

March 5, 2018, 8:04 am

I have designed and built a few things that worked. But I always used the s ledge hammer approach when it comes to impedance. I made the output impedan ce of the stage much lower than the input imp... Read more »

Are Brushless Hub Motors External Rotor Relunctance?

March 2, 2018, 4:33 am

Don't want to google this one. Read more »

wiping contact on aluminum

February 27, 2018, 9:25 pm

I need to bleed static out of a moving aluminum structure. I have a springy aluminum tongue (flashing) wiping on an aluminum arm (flat stock 1). Continuity is good to start with but after a year or ... Read more »

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The best rated discussions


Soldering Copper to Phosphor Bronze

Does anyone know if soldering copper wire to Phosphor-Bronze make a solid and reliable electrical connection? Would it make much of a difference if the copper wire is stranded or solid? If there is a... Read more »


Software for PIC 16F876

Hello, I want to built a simple datalogger with a PIC 16F876, and found a nice schema on the net. My problem: te software (source) is written in C, but i need a hex files to program the PIC processor... Read more »


Where to buy a small wheel hub motor?

Specifically, where can I buy a high quality small wheel hub motor (with wheel) like the one used for powered Trikkes? http://www.trikke.com/hd_2/Refurbished-Trikkes/Tribred-E-Kit-Upgrade http://www... Read more »


Best Light for reading?

When choosing a Flourescent Bulb for a Task Light what is the best for reading.......my choices are 2700 Kelvin, 3000, 3500, or 4100..... Read more »


Max Frequency of SM 118A counter?

  [ 2 3 ]

Anyone know the maximum frequency of a Heathkit SM-118A? I have been all over Google with little luck. One guy said it would go to 1 GHz maybe 2 GHz, I don't think so. ... Read more »


Questions in regard to Art of Electronics

I recently started teaching myself electronics in my spare time with the help of The Art of Electronics and its student manual. I have worked my way through the first chapters, but I have some questi... Read more »


How do you test a capacitor?

  [ 2 ]

Just bought a generator and it failed within two hours of usage. Mfg. say maybe capacitor and will ship a new one. But am not sure. I have a voltmeter with capacitor readings. Know how to test for re... Read more »


Thought experiment-will this work?

I think I pretty much understand how induction motors work. A typical single phase motor has a start winding that is approximately in quadrature electrically to the run winding. This provides the p... Read more »


Satellite radio - radio validation

I'm curious, can someone provide a simple several paragraph, basic explanation of how satellite radio authentication works? eg. If the radio is only a receiver and I cancel my subscription how does ... Read more »


HC08 development under Linux

I've always been singularly impressed by the people who can make lights blink and robots roll and whatnot. I've been trying a foray into that world for about a month now on and off with the apparen... Read more »