The pickup helps to convert mechanical oscillations from strings into a signal, further processed by various devices. "Thels" there is a huge set, so the first task of a novice master is to decide what exactly he wants to gather.
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The simplest pickup is operating due to the magnetic field created by the device components. In the metal braid around the magnets there is a current that comes on the wires to the amplifier. Variating the sensors, you can significantly change the sound tool. For bass and electric guitar there are two subtype of magnetic sounds: Hambaucker and Single. Watch a picture:
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Also, the pickups are classified as active and passive. The second is not included in the signal amplification, in contrast to the first. However, active peccles need an additional power supply, although they provide a better signal and a sound that depends only on the connected devices.
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The principle of operation of some pickups is based on penecrystals or reflection of the light flux, but these methods are considered in the article will not. First of all, due to the complexity of mounting the house and the requirements of serious training.
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To properly make a pickup on the basis of an electromagnetic coil, first we will need the basis around which the wire braid will be located. It can be chopped independently of girlfriend (for example, plastics, wood, textolite, plexiglass), passing about holes for future cores.
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For the manufacture of the latter, a metal rod, 4-5 mm thick, will be needed. According to eyewitnesses, even the old guide from the printer can serve as a material for them. To determine the length, just take a look at the blank for the sound.
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By making 6 cores with a conventional diameter, labeled the surface of the base. Drills for them holes so that the metal surface is correlated with the axes of the guitar strings. Insert into the holes, fasten with any cogs, we rest and admire the work done.
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Next, it is necessary to wind the coil, about 3000 turns or to the limit of our device. Thin thin wires (from 0.08 mm) will give the best result, but can break with the process. Wire ends Ludim soldering iron, they are encountered with insulated wire.
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To reduce the number of interference, the resulting coil needs to be shielded. Any foil is suitable for this task, including the chocolate. Cut from it a strip of sufficient width to completely wrap the wire braid. Fix foil along a bare wire, twist its ends and solder the insulated wire to them. Received a screen.
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Next part of homemade - magnets. They can be bought or removed from the girlfriend (old hard drives, "latches" from furniture and so on). Magnets are attached to cores and are firmly fixed, for example, silicone glue. To connect to the hardware, connecting outputs with an extension cable and connector of the desired design (say, Mini-Jack 3.5, for connecting to a computer). Place the pickup on the guitar is necessary so that the clamping strings still do not touch the cores.
As we can see, make the simplest pickup can be even without deep knowledge in electrical engineering. However, for professional, concert sound, more expensive technique and thoughtful schemes will be required. Perhaps you will have to realize them at home at the right approach.
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