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Phonograph. is a pass analog signal.
The machine that records and reproduces sound, in the 40s, the phonograph was the main equipment of people, and after the 60s, people gradually entered the digital age, and the phonograph gradually faded out of people's field of vision. However, the precious sounds recorded in the era of analog signals are still through the phonograph**, which is more classic and precious.
The following is an introduction to the contents of the gramophone and how to use the phonograph.
Tools Raw materials.
Phonograph. Gramophones can be simply divided into: turntable, loudspeaker, tonearm, cartridge.
The phonograph turntable is used to place the record and rotate the record so that the gramophone stylus can read the vinyl record.
on the analog signal, thus emitting sound.
Big horn, big horn is the logo of the gramophone, because the sound read by the stylus is very small, so at that time it was through the big horn to amplify the sound, and now it is generally used for **treble. When I saw the "big speaker phonograph", what came to mind was whether it was Shanghai Tang.
The era of Gone with the Wind?
Tonearm, the front end of the tonearm is the cartridge, behind is a gyratory device, now there is generally a gramophone automatic arm closing function, that is, after the vinyl record on the phonograph turntable**, the tonearm is automatically retracted, the tonearm is retracted, and the turntable is automatically stopped**.
The main component of the cartridge is the stylus, which is also one of the main components of the phonograph, the analog signal of the stylus is converted to vibration, and the vibration signal is transmitted to a special membrane to reproduce the sound wave pressure, which becomes sound, and then amplified by the loudspeaker.
Use the gramophone method.
Put your favorite gramophone vinyl record on a clean turntable, take off the cartridge cover on the cartridge, unlock the tonearm, and slowly put the phonograph stylus on the record, the record will automatically rotate, and the ** on the vinyl record will automatically come out.
end precautions.
Gramophone turntables should be kept clean, otherwise it will lead to the collectible quality of vinyl records.
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There are 2 main types of gramophones, one is hand-cranked and the other is electric, both of which require old-fashioned records. The hand-cranked one needs to be wound tightly, and then the phonograph's stylus head is moved to the record texture, and the audio can be broadcast, and the electric one is to turn on the switch and move the phonophone to the record texture.
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Hello, how to use it is 1Place the record in the gramophone: Place the record on the gramophone's turntable, make sure it is embedded in the center, and gently tighten the black center screw of the record.
2.Adjust the position of the cartridge relative to the hinge: Move the cartridge up and down to the center of the head relative to the head.
3.Adjust the volume: Adjust the volume to the appropriate position (generally the bass is better than the bent branch).
5.Maintenance: Regularly check and adjust the center position of the cartridge from the magnetic head and adjust the volume, and clean the inhaler and cartridge regularly.
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Summary. The gramophone is generally placed in the study room of the home, and many people have this place in their homes.
The gramophone is generally placed in the study room of the home, and many people have this place in their homes.
Or it can be placed on the coffee table in the living room, and this can be placed according to your own preferences.
Gramophone is now used very little in many families, and generally only more nostalgic people will use it, because today's electronic products are too developed, and it is more convenient to use speakers when listening to songs.
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The phonograph disc is used to place the record and rotate the record, so that the gramophone stylus can read the analog signal on the vinyl record and produce sound.
Classical phonographs, especially original wood, are the protagonists of Chinese retro home decoration, and its versatility and practicality, whether with Chinese furniture or European furniture, can bring out the owner's taste;
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Generally, the disc has a switch to prevent rotation, first dial the direction of blocking how to put the record on it, and then shake the handle to feel very difficult to stop shaking. Turn on the kill switch, turn the record reading book, and then put the tonearm with the stylus in the outermost slot of the record and you can hear it**. Some turntables with a playback can be used on their own, and turntables with motorized pickups require amplifiers and horns.
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I think you can look at the principle of the phonograph, on a black turntable, the sound vibrations are achieved by a undulating track or groove, fluctuations in the plane of the turntable, to reproduce the pressure changes of the sound waves as accurately as possible. As the stylus moves along the groove, the tip vibrates slightly as the groove fluctuates. This vibration is amplified by a membrane transmitted by a mechanical device and emitted into the air.
If you still have any questions about this, you can find the relevant information in [Vanishi].
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Update 1:The gramophone model of "Brave Detective Record" will be recorded. The material is easy to use. Some people have watched a set of dramas.
Know the whole point only elementary school phonograph model.
The homemade gramophone is so complicated, my grandfather has made one, with a few years of time, a former winding clock, dismantle a bell case, as long as it is a drive, add a turntable, in the homemade a gramophone cartridge, a horn, important both a stabilizer, but the record has to be bought. Homemade phonograph cartridge [production method] 1 Use a tin canning box with an outer diameter of 7 cm, remove the bottom of one box, and beat the bottom of the other box with a wooden hammer into a group of horns, as shown in Figure 9 7 1. **Reference:
pep oldimages pic 23989 2 Find a section of steel wire 15 cm long and 2 3 mm in diameter, polish the wheat flour smooth, insert it from the hole in the outer lower side wall of the can box (the steel wire does not contact the side wall) to the upper side wall of the box and solder it with tin, and weld it together with a 1 mm thick steel wire in the middle with the flared vertice. At the lower end of the wire, a metal sleeve is made to hold the phonograph stylus, and the structure is shown in Figure 9 7 2. **Reference:
PEP OLDIMAGES PIC 23990 3 Install a wooden handle on the unlidded side of the can box, the position of which is as shown in the figure **Reference: PEP Oldimages PIC 23980 [How to use] Hold the handle in your hand and gently place the tip of the stylus on the turning record cooker to hear the sound. 【Principle Description】 The unevenness on the record causes the vibration of the stylus, and the bell mouth is driven to vibrate through the steel wire, and the resonance box of the canning barrel is used to make people hear the clear sound recorded on the hidden or sock record.
Reference: pep czwl xszx wlxszx8 wlsx8zz 200304 t20030415 50304
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