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Transistor Sound Amplifier

Transistor amplifiers, despite the emergence of more modern microcircuits, have not lost their relevance. Sometimes it’s not so easy to get a microcircuit, but transistors can be removed from almost any electronic device, which is why avid radio amateurs sometimes accumulate mountains of these parts.

How to cut and grind new teeth on an old saw

After many regrinds, the teeth of a hacksaw on a tree lose their shape, become smaller and become ineffective. Will you really have to buy a new saw tool? But with this you can wait and try to cut new teeth on the old saw, after sharpening which, it will be ready again for full work. It will be required In addition to the old hacksaw for wood with worn teeth, we will need for our purpose: a tool for cutting teeth (stapler); hammer; grinder or emery wheel; trihedral file; clamp for holding the saw during sharpening; small dense cardboard.

Wall-mounted gas boiler mini oven

A gas boiler is undoubtedly a necessary and useful thing, but alas, it is not eternal. Unfortunately, many modern household appliances are made with the expectation that repairing them costs the consumer more than purchasing a new device and a gas boiler is one such device. If in your country house or in a home boiler house this one fails, do not rush to throw it away or discard it after replacing it with a new one.

PVC pipe stool

Furniture design is increasingly pleased with unusual innovations, expanding the traditional perception of things. So today we bring to your attention a homemade stool made of PVC pipes, which any master can do. Go! Materials: PVC pipe, diameter 25-32 mm; Fittings: cross piece - 2 pcs, straight connecting tee - 8 pcs, plug without thread - 8 pcs; Plywood, thickness 10-16 mm; Self-tapping screws for a coupler bench; Varnish or paint on wood.

Animation engraving

Seven years have passed since Jani Ponkko, nicknamed Japala, did his first work with engraving and acrylic lighting. Then it was a simple mouse pad. Much new has been discovered in modding over the years. The technique has become more perfect, and modders gained a lot of experience. But as then, today most often one sheet of acrylic is used for engraving.

Convenient metal stand for electric soldering iron

For more comfortable work with an electric soldering iron when soldering radio components and wires, a home-made metal stand is useful, which is very convenient, while not taking up much space on the table. The convenience of this stand also lies in the fact that there is a tin coil inside it - now everything you need for soldering will always be at hand.

Popular Posts

Pulse metal detector "Pirate"

Recently, such an activity as the search for various old coins, household items, and simply metal trinkets in the ground with the help of a metal detector has gained great popularity. In fact, what could be better than taking a walk through the field from the morning, breathing in the smells of nature, enjoying the views. And if at the same time it is possible to find some worthwhile find in the earth - then it's a fairy tale.

Scarf "Tenderness" in the technique of "Crazy-vul"

The history of the scarf dates back more than two thousand years. For the first time, a scarf appeared in ancient China for practical purposes - to protect oneself from the cold and wind. It was made of wool, silk and lace and other materials. Today it is also part of the wardrobe in the cold, and an accessory in warm weather, and even as jewelry. Scarves are worn by everyone: from a small child to an elderly person, so many designers, stylists, and ordinary people try to wear this wonderful wardrobe item in an original way.

Funny sunny bunny

Caring for their children, mothers choose reliable and high-quality toys. And recently, they even prefer to sew a toy on their own. Such toys are filled with light, kindness, mother's caress and care, positive energy, which is sure to be transmitted to the child during the game. I propose to sew a fun sunny bunny from unusual improvised material, from a baby sock.

Fast way to install posts

It is quite possible to save time and effort in the work of installing wooden poles if you resort to this simple and simple technique. So, right to the point, what is the trick. The usual, classical method involves digging a well, installing a beam and filling an empty cavity with a ready-mixed concrete solution.

Wheel Lights - LED Neon

Here is such a funky LED backlight for each bike you can make with your own hands. There is no trick, but the result exceeds all expectations. In fact, I had long dreamed of such a backlight, and I could not afford the purchased devices, but in principle, and not only to me, it was expensive and stupid! But once, a straw from a cocktail fell into my hands and I immediately stuck a 5 mm LED into it.

Month

Why make toys with your own hands if you can buy them? Indeed, but not everyone can afford to please a child with new amusements too often; moreover, it is not known what materials the new purchase will be made of, suddenly it is dangerous to health. And a hand-made thing is always more valuable and close to the heart, exclusive, you can be sure of its environmental friendliness, and if you connect your child to the process, you will have two more pleasures from needlework.

How to remove the mounting foam

Surely you have encountered such a problem as a frozen mounting foam. This problem is often dealt with by installers of windows or doors, as they constantly work with foam. But if they already have enough knowledge on how to use and remove the remnants of this material, then most people just do not have enough experience and often find themselves in a situation where the foam has hit any surface and has hardened.

Original invitation to a bachelorette party

A bachelorette party is an important event in the life of a future bride. Therefore, you need to prepare for it thoroughly, having thought through every detail, up to invitations. Original invitations in the form of such a subject of a woman’s toilet as a corset will be able to surprise girlfriends and tune them to a festive mood. In order to start work on creating an invitation, you will need: • a sheet of beautiful colored paper or cardboard, • lace ribbon, • narrow decorative braid, • shiny nail polish, • pencil, • glue; • ruler; • scissors; • stationery knife.

Simple recipe for hodgepodge

Among hot hearty dishes, soups rightfully occupy the first place. Solyanka is one of the most nutritious cooking options for the whole family. This soup saturates the appetite thanks to several types of meat in the composition. And the added smoked meats will add spice to the dish. I just love hodgepodge, this is definitely my favorite soup.

How to make a sheet metal cutting knife

To make a homemade roller knife, you need a pair of bearings with an inner diameter of 20 mm and an outer diameter of 52 mm. Previously, one of the sides on the bearings must be grinded with a grinder, so that in the end a smooth cutting angle is obtained. In addition, for one of the bearings it will be necessary to make an eccentric with a diameter of 20 mm so that the height of the roller can be adjusted.

Transparent jar needle case

I once had a needle bed - very beautiful, with a transparent cone-shaped lid, but completely uncomfortable. Needles stuck out of the pillow in different directions, so it was impossible to close the needle bar with a lid. Needles constantly fell out and lost. Once I bought mustard in a round plastic jar.

Box with a surprise orchid

A box with a surprise is an original little gift that will surprise and delight with its unusualness. The gift idea is that in addition to the elegant appearance, the box has contents in the form of a lovely voluminous orchid flower. For work, we will prepare the following materials and tools: Colored paper, a sheet of cardboard, lace paper napkins, scrapbooking elements.