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There are 99981 individual articles here that are part of 9274 discussions
Please see below the list of the most recent and the best rated articles in Hobby Electronics Basics

The most recent discussions

I got a box of old parts, any chance any of it is useful?

March 11, 2020, 6:12 pm

At a fundraising event I found a very nice wood box in the electronics section. It has what appears to be a broken decades old multimeter at the top, and drawers full of parts below. There are a co... Read more »

Transistor testing

March 4, 2020, 5:10 pm

I have some BC547 transistors which I want to use in a circuit, but according to this: Hook the positive lead from the multimeter to the to the EMITTER (E) of the transistor. Hook the negative m... Read more »

Wireless phone charger

February 24, 2020, 5:27 pm

Just for fun I thought I would make a wireless phone charger. I'm not reall y going to use it but I wanted to build it and just see if it actually work ed. The circuit uses two coils and a 2n222 tr... Read more »

Does a parrot's foot conduct electricity?

  [ 2 3 4 ]
February 21, 2020, 8:56 pm

My pet parrot has a habit of chewing wires but never got a shock. I tested her feet with a multimeter and it was over 20Mohms. My own dry finger is 1Mohm. Are they safe from shocks due to scaly feet?... Read more »

Re: Problems with 12V and 5V lines on a PC ATX supply

February 20, 2020, 10:57 pm

I said They could even have it shut off if there was enough external load. A decent supply made by Corsair lets you take the full 850W from the 12V line. The designers of this supply are morons. Read more »

555 pin3 output

February 20, 2020, 5:51 pm

I've been trying out a couple of Automatic Fence Lighting circuits with a 444, 741 and ldr. I posted earlier about the circuits above , and the problem I had was that I could not get a buzzer to... Read more »

Re: The Triumph of Dedicated Solutions Over Double Duty; How Much Is Elect...

February 14, 2020, 5:41 am

cools the pistons and fills the hydraluic valve lifters I'm not certain that that's everything. -- Jasen. Read more »

Schmitt Triggers

  [ 2 ]
February 9, 2020, 11:11 pm

I have been looking at schmitt trigger circuits and didn't realise how many variations there are. Anyway I found this one: https://reviseomatic.org/help/2-radio/Schmitt%20Trigger%20Light%20Senso... Read more »

AoE 3rd Ed heavy discount on Amazon UK

February 9, 2020, 1:40 pm

A UK heads up, https://www.amazon.co.uk/Art-Electronics-Paul-Horowitz/dp/0521809266 I had the first edition at college, and sold it on to a new student. Second edition came out, I was still brok... Read more »

Measuring Accuracy: 1.0 grade

February 7, 2020, 2:12 pm

An Amazon meter is described as having Measuring Accuracy: 1.0 grade. I found that there is a standard that defines the grades, but is there a simple answer to what 1.0 grade means in percentage?... Read more »

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The best rated discussions


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 »


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 »


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 »


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 »


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 »


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 »


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 »


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 »


Electronic parts sites

I am looking for sites that sell electronic components. I have Jameco, but they don't have a lot of components. Thanks, Andy Read more »


UCANDO videos

If anyone has any old ucando videos on the subject of AC or DC or power supplies or amplifiers or any basic stuff and you want to sell them, at a resonable used price, I'd be interested. I'm just ... Read more »