According to Fan Heng's feedback, the enthusiasm of the cadres and workers of the Pingyuan Factory has indeed been very high.

"It seems that public opinion propaganda is indeed very important, no wonder the status of the Propaganda Department is so high." Fan Wuxian said to Fan Heng.

Fan Heng flipped through the information and replied casually, "The recording aspect itself is just a restriction problem, and now the restriction is about to be lifted, and the technical aspect is not a problem at all." In addition to continuing to produce a small number of orders for single players, most of our production capacity has been invested in the development and production of recording and playing all-in-one machines, and the machines have basically been finalized, and now we are mainly engaged in some test problems and external corrections. Saying that, Fan Heng gave Fan Wuxian the instruction manual of the new machine and took it over to watch.

Fan Heng glanced at it and found the problem.

The plain factory still uses the old method on the manual of the new walkman, the manual is just a thin two-page paper, the printing is general, the circuit diagram is two, and the manufacturer's contact number and after-sales service site address and so on, so that people can read at all.

"That's your manual? What does this mean? Fan Wuxi was a little speechless.

"Is there something wrong? Our instructions are very detailed, and there are two circuit diagrams. Fan Heng felt a little strange.

"Ahh I'll show you what a real instruction manual is! ”

It took a full afternoon for Fan Wuxian to sort out the things he came up with, and after classifying them, he saw that there were actually more than a dozen pages, and if you add illustrations, I am afraid that there will be a hundred and ten pages of explanations. It covers a lot of knowledge points, even the most basic principle of the single player is involved, for example, the description of a recording key is as many as two pages, which is completely based on the later computer manual, but the knowledge surname and the fun surname are equally important, which makes people read with relish.

After Fan Heng saw the manual that Fan Wuxian took out, he was immediately fascinated, and only after reading it intently did he let out a sigh of relief, "I really didn't expect that the manual could be written like this!" ”

Don't say that Fan Heng has never seen such a manual,That is, most people in China have never seen such a detailed manual,At that time, domestic products,The manual is basically just one page,The manual of some TVs is a circuit diagram,Where can ordinary people understand?

"Humanization!" Fan Wuxian stretched out a finger and said to Fan Heng, "Humanization is the key to making products!" We need to do more than just products! We want to build our own brand that stands out from the crowd! Whenever people see any product manual, they must think of the resounding name of Thunder! That's what we're aiming for! ”

"Well, I also believe it's a different idea! At least after ordinary people read it, there is not even the slightest obstacle to the use of our products! I'll arrange for someone from the printing shop to get it tomorrow! Fan Heng was impressed.

Fan Wuxian reminded, "Be sure to pay attention to ensure the quality of printing!" It's best to use coloring pages! ”

"It's a bit difficult! I'll try to arrange for someone to get it! Fan Heng scratched his head and said.

The printing house still uses lead printing, and the typesetting is quite troublesome, Fan Wuxian remembered the computer word processing system he used later, which was convenient, and he couldn't help but feel a little nostalgic.

Fan Heng coughed, his brow furrowed.

Fan Wuxi looked up and found that there were two bubbles on the corners of his father's mouth, and his lips were also very dry.

Now it is the autumn season, the weather in the north is very dry, and the work in the factory has been very busy, Fan Heng is anxious because of the entry of the manufacturers into the country, so he has not rested well, and finally got on fire.

"Dad, you're on fire!" Fan Wuxian said sullenly.

"Oh! I forgot to take my medicine again, and my tongue hurt at the root for the past two days. Fan Heng was reminded by his son that he had not taken the medicine, so he took out a few pills from his jacket pocket.

"Three yellow films! This stuff won't work if you eat it often—" Fan said.

"What's the solution?" Fan Heng replied, "During this time, the house was very dry, and I put several basins of water in the room, but to no avail!" If only there was a rain! ”

The air is dry! This question!

Fan Wuxi's head suddenly had a flash of inspiration, and he remembered a question!

"Hahahaha-" Fan Wuxi slapped the table and suddenly laughed, "The air is dry!" This is another way to make a fortune! ”

Fan Heng had long been accustomed to his son's startle, and when he saw him so crazy, he knew that this kid must have thought of something again, so he asked, "Seeing that you are happy to be like this, isn't it because you see that your old son has bubbles on his mouth?" ”

"Where am I so sinister?" Fan Wuxi's enthusiasm is still undiminished, "I have thought of a way to make money, aren't you worried that the business of the Walkman will not be able to support you?" So how about we work together on another project? ”

"Tell me, what's your idea?" Fan Heng suddenly became interested, he knew that his son, but he had never let himself down, since he said that there was a way to make money, then there must be money to be made!

"Air humidifier!" Fan Wuxian wrote these few big words on the paper.

"Air humidifiers? What is this? After hearing this, Fan Heng intuitively thought that this thing was used to improve the humidity in the air, but it was impossible to start with how to achieve it.

However, Fan Heng touched the big bubble on his mouth, thinking that if he could really make this thing, it would be very useful! The only thing to worry about is that the price is too high, otherwise, there is absolutely no need to worry about the sales of this thing.

The household air humidifier is actually to turn the alternating current into direct current through the transformer step-down rectification, and then turn the direct current into high-frequency alternating current through the oscillation circuit and add it to the ultrasonic atomizer head, this ultrasonic atomizer is actually a ceramic oscillator, the ceramic oscillator has a characteristic, apply external force to it to deform it will output the corresponding voltage and current, on the contrary, the alternating voltage applied to it will produce the corresponding deformation, that is, vibration. In this way, the ceramic oscillator produces ultrasonic oscillation driven by high-frequency voltage to atomize the water, and then sends the water mist out through the fan to achieve the effect of humidifying the air.

Fan Wuxian knew that the humidifier was to achieve its effect through an ultrasonic atomizer head, but he really didn't know anything about how this atomizer head was doing. But ultrasound is not too difficult to get, I believe that there will always be people who study this aspect of the content, go to the relevant departments to inquire, it is estimated that the problem is not big.

In fact, the domestic technical reserves are not weak, and what is lacking is only the power to transform technology into practical products.

After having Fan Wuxi's prompt, Fan Heng went to the technical department to ask about the humidifier, and found that there was really such a thing, and there were many applications in industrial environments.

Generally speaking, in modern industrial production and scientific experiments, the degree of attention to air humidity is relatively high, if the humidity can not meet the requirements, it will cause different degrees of adverse consequences, such as in textile factories and printing plants, humidity is generally required to be greater than 60%RH, otherwise, all kinds of dry dust in the air are very easy to lead to fire.

The industrial humidifier is generally very large, it moves laterally through the saturated steam of the steam source in the nozzle jacket, enters the evaporation chamber, slows down the steam, and the condensate contained in the steam is separated and discharged through the condensate outlet at the bottom of the evaporation chamber. The water is filtered and separated by entering the preheated drying chamber, and the dry steam enters the nozzle through the regulating valve and is sprayed out of the nozzle with a silic metal mesh to achieve air humidification.

But if it is used at home, it is definitely impossible to make it so complicated, the working principle and sample of the ultrasonic oscillator, Fan Heng also found it, he tested it with cold water according to Fan Wuxi's description, and sure enough, part of the water can be atomized out, as long as the appropriate water flow and appropriate input power are adjusted, there is no problem at all with the household atomizer.

After Fan Heng's experiment was successful, he didn't care about waiting to get off work, so he ran back to his home and told Fan Wuxian about it.

"Hehe, so my idea can still be realized?" Fan Wuxian felt very interesting when he saw his father's enthusiastic look.

Fan Heng touched the big bubble at the corner of his mouth, and said to Fan Wuxi, "Anyway, no matter whether it can be sold or not, I have to make one myself first, and this house is too dry!" ”

Fan Wuxian nodded, thinking deeply.

Dryness is the enemy of health, it will not only cause a large loss of water in the human body, cause skin tightness, dry mouth, cleft lip, fire, etc., but also cause respiratory diseases such as flu and laryngitis.

Dry indoor air can also cause harm to furniture, floors, household appliances and other utensils, shortening the service life.

Even in the south, the indoor air humidity in autumn and winter is only below 40%RH in the weather that does not rain or after using air conditioning, which is significantly lower than the normal humidity of 40%~70%RH in the room.

Fan's father and son are very optimistic about this household humidifier project.

(To be continued)