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Amplifier - marker column

External speakers, USB speakers and speakerphones and headsets are now conquering the market for electronic devices. An inexperienced consumer may find it difficult to understand all these new products. Sometimes it turns out that most of them are unclaimed, because every gadget we choose for themselves and their needs. And the more valuable our choice, if we are offered to make such a device with our own hands. Today we want to present you a powerful external column made from a simple marker. And this is not a typo, we really will give a second life to a dried up and unnecessary marker, which is usually thrown out because it does not already write! The miracle of technology will be small, but loud enough, and will provide worthy sounding of your favorite tunes, clips or movies directly from your smartphone. This gadget is also convenient because it is as easy to use as possible and does not require any additional software. It is enough to connect it to the headphone jack on your smartphone and activate the work with the usual button-switch.And how to make this device with your own hands, we will tell you now.
Amplifier column from a marker

The necessary elements for a homemade column

Most of the electronic parts for small gadgets like this are taken today at the Chinese site Aliexpress. Our device is also no exception, so the author used a suitable tool for its manufacture:
  • A small soldering iron for soldering small printed circuit boards and parts;
  • Precision conical drill bit;
  • Technical drill with abrasive nozzles.
Marked up with another felt-tip pen, still suitable for writing). It is worth noting that the author used a drill and precision drill for more convenience in work. However, they are easy to replace with a regular paint knife and a set of suitable drills for a screwdriver or a drill. Copper insulated wires and solder will be needed to connect the elements. The author made the installation of the components with hot glue, because without him no real electronic invention can do today)).Materials will need the following:
Amplifiercolumn from the marker

Getting to the production of a wonderful speaker for a smartphone

First you need to prepare the main component of our device - a marker. Its body is gutted from the filling. Cut the neck with a knife , and ream the entrance hole with a drill under the 3.5 mm plug. We leave the lid and cap of the marker, we will also need them.
 Amplifier Column from the marker
 Amplifier Column from the marker
 Amplifier Column from the marker
 Amplifier column from a marker
Amplifier column from a marker
Mark the hole for the button-switch with a marker closer to the neck, drill through a drill or a drill, and cut the edges with a knife. In the same way we customize the speaker.
Amplifier column from a marker
Amplifier column from a marker
Amplifier column from a marker
Amplifier column frommarker
 Amplifier column from the marker
 Amplifier column from a marker
 Amplifier column from the marker
The regular body of the speaker will create an unnecessary volume, so get rid of it with a drill and cut with a knife.
 Amplifier column from the marker
 Amplifier column from a marker The plug must have output contacts of sufficient length. They are soldered onto the board of the digital amplifier module at the input, and the speaker at the output.
Amplifier column from the marker
Amplifier column from the markerAmplifier Column from the Marker Next, connect the soldering socket of the charging socket and the 3.7V Li-Ion battery, selected in advance for the size.
Amplifier column from the marker
Amplifier column from the marker From the charging socket, we output two power wires through a button to the amplifier board.The disassembled diagram looks like this (photo).
Amplifier column from a marker
Amplifier column from a marker
The braid of the plug connector is 5.5 too bulky, so the author chose to remove it by unsoldering the contacts. After this procedure, we return the plug to its place.
Amplifier column from a marker
Amplifier column from the marker
Amplifier column from a marker The charging socket of the gadget according to the author's idea is located in the back cover of the marker. Under it we drill a hole, and we put a nest on hot glue. We connect it using copper wiring.
Amplifier column from a marker
Amplifier column from a marker
Amplifier column from the marker
Now the device can be assembled by placing all the elements in the body of the marker. First, mount the far element - the microphone, then the button with the amplifier. The closing elements will be the plug, which should fit tightly into the neck of the marker.Fix it and the marker cap with the charging slot additionally with hot glue. [/L_REPEAT]

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