Articles

Hello, I was bored so I decided to make a go-kart and at the same time I took pictures so that there would be no more stupid questions about: "HELP, GIVE A SCHEME HOW TO MAKE A GOKARD". My construction is not finished yet, no bolted wheels etc. but feel free to comment. The design... [Read more]

A mercury mercury rectifier (also called a Hewitt rectifier) is an electrical rectifier used to convert alternating current into direct current. These rectifiers were used in all applications requiring high power, from several kilowatts to several megawatts. Operating voltages ranged... [Read more]

Hello all. I would like to present devices that I and two friends made for the subject of Microprocessor Technology at AGH. At the same time, this and my colleagues' applications will be on display at the Krakow Science Festival on May 14 from 11:30 to 16:00, in the main hall... [Read more]

Hello. I would like to present the horizontal track that I built with my father during the winter. The design of the cutting part is now complete (only paint remains). Now we are waiting for spring to lay the foundations for the track. The construction was based on photos on the Internet.... [Read more]

We've all struggled with a jamming key on the keyboard. This is a problem that anyone can deal with quite easily. Below is a short video with a very simple way to fix a button jamming. We should also remember that periodically you need to disassemble the keyboard, remove all the... [Read more]

I warmly welcome all fans of high voltage. I would like to introduce my tube tesla coil on the GU-81M lamp. The coil was created according to the diagram on page Link And what to write here, I wish you good luck in building the tlock and meter coil 1998 I used this scheme (not really)... [Read more]

Hello all. Unusual start the post from thank you. First of all, I would like to thank my friend Natalii , which using a gel pen she breathed life into this piece of electronics :) . Thanks are also due to colleague Radek, who served good advice during the design of the system. I also... [Read more]

I decided to write such a topic because there are often questions "in series or in parallel" "how many Ohm" etc. So : As if someone did not know or forgot, I remind you: When connecting in series, "Ohms" increase (add them), e.g. 2x8? in series connection is 16? 8 + 8 = 16? 3x8? in... [Read more]

At the beginning I would like to say hi, because as you can see this is my first post. I've been browsing the electrode for a long time, but I've never been on the forum. Today I decided to take a step forward, show myself with something specific. The idea of the project is... [Read more]

Hello. I made a soldering iron for plastic. I saw a similar company, and that the construction is very simple and you have to pay for welding, it is worth doing. 5mm diameter, 2m of hose, a piece of cable with a plug. The required pressure is 0.5 ÷ 1.5 bar. I used a simple regulator... [Read more]

In general, the basic rule is that the impedance of the loudspeaker must not be lower than the minimum impedance specified on the back of the amplifier with which the amplifier works. On the back of the amplifier, as a rule, the speaker impedance on the Western minimum is written,... [Read more]

How to have fun at the expense of the neighbors ... make yourself a gun to turn off the TV sets in the estate. The recipe, as usual, came up with a fan of unusual solutions and posted the guide on the Internet. So you can construct... from binoculars and a special universal remote... [Read more]

My proven stabilizer circuit on the transistor. [Read more]