Ready-made headphones, even high-quality ones, fail relatively quickly. In the hands of a home craftsman, they usually start working again, but it is much more convenient to have headphones that will not break. You can make them yourself.
Instructions
Step 1
Purchase a plug that matches the type of headphone jack on the unit. The most common three-pin stereo jacks are 6.3 mm (1/4 ") and 3.5 mm (1/8"). The former are mainly used in stationary equipment, the latter in portable equipment, but there are exceptions.
Step 2
Remove the cover from the plug. Pass a flexible but durable four-core cable through the hole. A fairly common mistake of novice craftsmen is the following: they solder the conductors to the contacts of the plug, forgetting to first pass the cable through the cover.
Step 3
Locate the cable support on the plug. It has a hole in it. Solder two of the four cable conductors to this hole. Solder two more conductors, respectively, to one small contact and to the other, after putting on small insulating tubes (cambric) on them. After soldering, close the contacts with these tubes.
Step 4
Wrap the cable with two layers of electrical tape, then secure the wrapped section in the rack.
Step 5
Close the plug. Check with an ohmmeter for short circuits.
Step 6
Place two identical small speakers with an impedance of 8 ohms in round resonator casings, as which you can use well-cleaned plastic jars from shoe polish. In series with each of them, turn on a resistor with a nominal value of about 30 ohms. They must also be the same.
Step 7
Bend the headband from a metal ruler. Mount the emitters on it in any way convenient for you. This can be, for example, screws with nuts. Headphones should not have sharp protruding parts that could scratch your ears.
Step 8
Connect two wires to each emitter (consisting of a speaker and a resistor), one of which in both cases must be connected to the plug post, and the other to one of its small contacts.
