A phonograph is a machine that records and reproduces sound through analog signals. Simply put, it is an electric device used to record recordings. But now it is rarely seen. Today, Xiaobian will share a method of making a homemade phonograph. The materials are very simple and the tutorial is very clear.
The phonograph, also known as the record player, was called one of Edison's greatest inventions and later evolved into tape recorders, CD players and digital mp3 players. The earliest home phonographs were the Edison Palladium phonographs produced in 1878, each priced at $10.
Now part of the 80s may have seen this old-fashioned playback device in the early days. The sound of the phonograph is not powered by the speaker, but purely relying on the vibration of the maple to produce a resonance. Let me introduce you to the general steps of how to make a needle phonograph by hand.
Materials and tools to be prepared:
1. A disc on which a record can be placed;
2. The motor and belt of the tape drive, some runners;
3. One needle for sewing;
4. A bracket made of aluminum;
5. A copper strip;
6. One bottle of beverage;
One of the 7.5V mobile phone chargers is used as a motor power supply (old-fashioned is a hand-cranked spring).
Old record
The motor, belt and some runners taken by the tape drive, the motor drives the wheel to make a deceleration.
The runner drives the disc to perform a second deceleration to achieve the required speed and uniform speed of the disc.
Large disc of the record
The sewing needle is solid at the front end of the copper strip, which is the pickup (pickup).
Then insert the other end into the bottle cap and resonate. This is the horn.
Use the iron wire to put a small hole in the tail of the beverage bottle and hold it up, so that the phono can be translated inside and outside the turntable, so that a simple phonograph is completed in DIY, and try the effect immediately!
OBD Connector Section.
OBD:On Board Diagnostics.
One is to connect to the OBD interface of the vehicle through a special data line. Reading out the data and displaying it on the matching display screen is basically equivalent to adding a driving computer display screen. At ordinary times, the connecting cable can be plugged into the OBD interface all the time without removing it, and only the fixed display screen is needed. The owner can choose the data to be displayed by himself
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