Hobby Electronics Basics - Main Page

Do you have a question? Post it now! No Registration Necessary

Hobby Electronics Basics - for you, electronics enthusiasts!
Web, RSS and Social Media interface to sci.electronics.basics
There are 100548 individual articles here that are part of 9318 discussions
Please see below the list of the most recent and the best rated articles in Hobby Electronics Basics

The most recent discussions

Automated Power Cycle

March 24, 2021, 4:09 pm

Hey all, Has anyone used or installed a 120volt power relay that would allow for a 23 hour 59 minute on time and a 1 minute off time that would then repeat the cycle?? The desire would be to have... Read more »

Help required with 22V10 - Using a pin as Input an Output

March 17, 2021, 8:07 am

I'm having problems with the SDA part of an IIC implementation in a AMD 22V 10C (not from China!). I can Output data, to the SDA output, but I'm not ab le to read the SDA input! My CUPL equations, ... Read more »

PSU for valves

February 17, 2021, 4:51 pm

I thought I'd experiment with a few valve circuits (just for fun). So I'll need an H.T. power supply and I'm looking at this: https://www.timstar.co.uk/el120300-high-tension-ht-power-supply.html ... Read more »


February 16, 2021, 8:55 pm

Best to ask here or ? My gas furnace is a Holly. It has an old mercury two wire thermostat. I want to change the thermostat so that I can set the same two temperature ranges, day / night, for ev... Read more »

Really Basic Power On Question

February 16, 2021, 3:59 pm

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... Read more »

3 phase AC to DC

February 2, 2021, 4:26 am

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... Read more »

Re: Use resistor instead of regulator?

January 30, 2021, 10:55 pm

If the capacitor is needed there probably are problems. In the spirit of your question that is all I will say. -- Jasen. Read more »

Ten 860v Electric Eels Wire Themselves In Series

January 17, 2021, 5:09 pm

For The First Time, Electric Eels Have Been Seen Hunting And Zapping Prey as a Group https://www.sciencealert.com/for-the-first-time-electric-eels-have-been-recorded-hunting-in-a-shoal/amp Maybe not... Read more »

AI "Low Class" Recognition App At Playstore

January 10, 2021, 6:08 pm

Could AI ID a particular Low Class look? Absokookely! Probably spot a tRUMPin a mile away. Use it at bars, etc. to eliminate the bouncer. Trump was more upset that Capitol mob looked ?low class? ... Read more »

Full wave rectified source for DC motor

January 6, 2021, 3:29 pm

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... Read more »

Click here for other recent discussions »

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 »