You can buy it there, the transistor you said or something? How much does it cost?

This is to build a circuit, not just a device.

In the Haehan Empire, the 321524 of V+, passengers who fail to receive their itinerary within 7 days after taking the plane can make up the itinerary at the ticket purchase station at the airline and ticket offices. 2. The service of printing the itinerary is valid within 30 days after the ticket is purchased. Passengers who collect their itinerary at the airport must collect it within 30 days of departure.

3. The service of printing the itinerary after 30 days after the flight takes off is invalid. Itinerary cannot be printed after 30 days. In this case, you need to contact the carrier (airline) or the seller who purchased the ticket to negotiate and resolve.

4. Collect the itinerary at the airport counter of the designated BAI, and the general airlines will set up the itinerary receipt collection counter at the airport. 5. If you have any questions that you don't understand, you can consult the airport staff, and they will give you detailed answers. 1. In order to protect your legitimate rights and interests, when booking air tickets online, you must pay attention to check whether there is an online electronic logo issued by the Industrial and Commercial Bureau, an ICP certificate number issued by the telecommunications authority, and an international certificate issued by the International Air Transport Association (IATA).

2. In addition to having a fixed place of business, a regular travel agency or ticketing company that operates air passenger transport business should also meet the following conditions: (1) have'International Air Transport Association'The IATA license number issued. (2) It has a license issued by the Civil Aviation Administration to operate air passenger transport business.

Companies that only have the right to domestic tickets** are not allowed to operate international ticketing business. (3) It has a fixed business place and a civil aviation reservation terminal system. (4) Have qualified ticketing professionals trained by Civil Aviation and International Air Transport Association.

rththrth3、In order to ensure that the correct fare is found, please inform the exact departure and return dates when inquiring, and ask for written confirmation**. 4. Airlines will launch **** and related information from time to time, please pay attention often'What's new'Column. 5. In order to avoid not being able to reserve a seat when the seat is tight, it is best to book the seat as far in advance as possible.

There is no charge for booking a seat, and if you decide not to purchase a ticket, you can notify you of the cancellation.

Do you buy more, use it yourself or what do you use, use it yourself to place an order online, the operation is simple and the trouble is saved, I want more to take it with Beijing Nandian. I've known him for a long time, and he's pretty good.

Buy more, use it yourself or pick it for the company, use it online to place an order, the operation is simple and save the trouble, I am for the unit, mostly with Beijing Nandian a sales contact, I have known him for a long time, and it is very good.

**Ah everything, buy more**Ah, I just bought 13003, 13005

There is a way to do see my profile and there is a contact information.

We make our own transistors.

Now there are many electronic device trading platforms are sold, if it is a bulk purchase, it is recommended to go to the electronic **** to buy, there are many models, and the most transparent, the purchase is also in aspect.

Of course, when selecting a triode, it is necessary to grasp the basic parameters of the transistor, and it is necessary to grasp the characteristic frequency, noise and output power of the transistor.

1.Eigenfrequency ft. As the output power increases, the operating capacity of the transistor may decrease, and the frequency ft corresponding to =1 is called the eigenfrequency eigenfrequency ft of the transistor.

When formulating and making electronic circuits, it is advisable to select a triode with a small capacitance between the poles for the triode in the lines of high-frequency increase, medium-frequency change, oscillator, etc., and should be 3 10 times of the output power of its characteristic frequency fr. For example, to make a wireless microphone, a triode 9018 with a characteristic frequency of more than 600nhz should be used.

2.Selection of noise and output power. When making a low-frequency amplifier, it is important to consider the main parameters such as the noise and output power of the transistor.

It is advisable to choose a tube with a small penetration current, because the smaller the ICEO, the better the temperature reliability of the amplifier. In the low-level circuit, if the medium and small output power complementary push-pull pair is selected, the loss output power should be less than or equal to 1W, the greater electrode current should be less than or equal to, and the maximum working voltage in the opposite direction is 50 300V.

To buy transistors, you can go to the local electronic components market to find and buy!

Transistor**.

Some special models of transistors are hard to buy drops!

What to do? You can contact the manufacturer to ask for it. You can also look for alternatives to meet your needs according to the parameters of the original transistor!

If it really doesn't work, you just send it to the after-sales service department for repair! !