When he went out, Wan Feng went into the broadcasting room again, and borrowed Lao Hong's set of electric soldering iron equipment at the price of a pack of one dime and three cents.

Returning to his grandmother's house, Wan Feng began his research and creation.

First dismantle the speakers in the radio box, and after testing to prove that they can still work, use screws to fix them in pairs and up and down and firmly fix them in the small box.

On both sides of the box he reserved a place for installation.

This small box was divided into three parts, with a partition in the middle, so that the places where the horns were placed on both sides became a small speaker.

It's a pity that there is no professional woofer, so I can only replace it with this thing.

He also has a set of speakers, and the pair of speakers he made back then shocked countless people's jaws.

The last karaoke first appeared in Hongya in the summer of 93, when there were more than 4,000 VCDs, and more than 10,000 combined stereos.

This is not something that ordinary people can enjoy.

In about 99 years and 2,000 years, the price of VCD plummeted to about 1,000 yuan, and the miscellaneous machine was about 800 yuan, which entered the homes of ordinary people.

Karaoke is also starting to really catch on in this small town.

At that time, in the summer, there were many karaoke singers on both sides of the road from the Warrior Commune to Hongya County.

A TV, a set of stereos, and a VCD can be opened on the roadside.

Whoever sings a song for two dollars can go up and sing it.

Wan Feng, who loves to sing, often goes to sing and spends a lot of money.

Later, when I thought about spending this unjust money, it was better to get a set of my own set to sing how I liked at home, anyway, I have a VCD, as long as I buy a power amplifier and a pair of speakers.

It's better to act than to be excited, so he spent 800 yuan to buy a pair of speakers and a power amplifier.

came back and sang it, and the voice was miserable.

The 800 yuan audio combination is simply a goods thrown on the street, how good can the sound be?

This is not a problem, Wan Feng can change it himself.

Buy an enlarged version and buy components to change transformers, and a broken power amplifier of more than 400 yuan was changed by him into a product that is not inferior to others for more than 1,000 yuan.

He used the money from the sale of speakers to buy a pair of woofers with a diameter of 20 centimeters, and then bought a pair of tweeters with a combined version to make a pair of stage speakers.

The acoustics are OK, but there is noise, and when the bass is heavy, the speaker emits the sound of Ula Ula.

The paralyzed Lao Tzu is not a Soviet, what do you want Ula to do!

The reason was found, the board used to make the speaker was too thin, and when it was exposed to the flow of sound waves, it would vibrate and produce noise.

The speaker should be made with a minimum of no less than one centimeter thick combination board, because he didn't understand it for the first time, he bought the kind of board that was only three or four millimeters thick.

This problem is not easy to solve.

You can't just tear it down and rebuild it.

Wan Feng wandered around the street, thinking about what method to use to solve this problem, and it happened that the highway team on the street was repairing the road and filtering asphalt.

Wan Feng patted his head: There is.

He ran and asked for some unmelted asphalt and went home.

Isn't the speaker board thin, isn't there a vibration and a noise! Lao Tzu poured asphalt into the cabinet, see if you still vibrate!

In order to prevent the poured asphalt from falling off due to vibration for a long time, he nailed some nails on the cabinet, pulled some wires on the nails, and finally melted the asphalt into some rosin and other sticky substances to fill the bottom and corners of the speaker.

The result?

There is no noise anymore, and the timbre is very good.

Later, some professionals saw Wan Feng's nonsensical speaker, and their eyes almost flew out: This is fine!

…

It is precisely because of the experience of the previous life that now Wanfeng designs and produces a small speaker without pressure.

With the horns in place, the tape recorder movement was placed in the reserved slightly rectangular box, and the transformer, counter, and wiring were installed.

After everything was done, Wan Feng took a deep breath and plugged it in.

The reserved indicator light is on, which means that the power is turned on and there is a slight noise in the speaker.

Wan Feng pressed the key on the movement of the tape recorder with a slightly trembling hand, forward, backward, and everything was normal for playback, only the recording button could not be pressed because there was no tape in the case.

Now is the time to witness the miracle.

Wan Feng took out a tape of Teresa Teng and put it into the movement, and pressed the playback button.

"Sweet honey, how sweet you smile, like flowers blooming in the spring breeze..."

Although the sound quality sounded very average to Wan Feng, it was loud anyway.

The tape recorder he made was a success.

Wan Feng let out a long sigh of relief.

This thing finally sounded, then it was time to beautify the appearance, although Wang He painted a layer of lacquer to look shiny, but this bare is also a little monotonous.

Who are you going to sell it to if you don't make it look good?

Wan Feng's tape recorder is an experimental product, and there is no radio or battery box installed, which greatly reduces its cost.

When the tape recorder first appeared, the price was thousands of yuan, and Wan Feng made this kind of pure recording and playback machine really wanted to sell it one day, and he only planned to sell it for 300 yuan, and he could not press the radio, but the battery box must be pressed.

If there is no battery boxed battery, how can young people carry it on the street on their shoulders and pretend to compare? How can they show the bull ratio without pretending to be compared? How can they not be compared with oxen?

The paralyzed is out of words.

Wan Feng did not deprive others of the right to pretend to compare, not only did not deprive but greatly encouraged, they did not pretend to be his tape recorder sold to anyone.

The reason why he didn't press the battery box was that he forgot to buy the battery box.

Why have there been several times recently, it must have been affected by Luan Feng.

Although his tape recorder will definitely not be able to catch up with the plastic case tape recorders that will appear soon, if under the same speaker, Wan Feng believes that his tape recorder will definitely crush the other party in terms of timbre.

Anyway, his wood-shell tape recorder was designed according to the standards of loudspeakers.

Now all he had to do was make it pretty, and that was to make a cover for the tape recorder.

Wan Feng was thinking about whether to draw flowers or stickers on this shell, and the stickers were not to be counted on now, so he could only design the pattern by himself.

After thinking about it for a long time, I didn't come up with any clues, so I just let Jiang Min and Luan Feng design it.

These two products will definitely be able to design a dazzling cover.

My uncle and aunt came home from work.

Wan Feng hurriedly turned off the tape recorder and put it in his backpack, now he can't let them see it, and if he sees it, he probably won't want to take it.

During the meal, the uncle said that Zhang Hai had a meeting today and got an important news.

"What's the news?"

"He didn't say anything, he said he wanted to discuss it with you. ”

He wants me to go to Liang Wanjia again, but now I don't have the time to pay attention to his affairs, and I can't be busy with my own affairs.