This is called a magnetic telephone hand generator.
It is used for military backpack communication. The wires consist of several strands of steel wire with a diameter of approximately 0.3 mm and several copper strands with a diameter. approximately 0.3 mm. The wires are twisted and have high mechanical strength and can withstand the impact of general explosive air waves. They can be erected on poles, among trees, rocky mountains and rough terrain in simple terrain conditions.
Can withstand being crushed by vehicles and trampled by heavy soldiers.
In order to ensure calls and conversations over a distance greater than one kilometer, it must be able to adapt to working conditions where the resistance of the wire is high.
Your generator is an alternator, which is used to generate ringing signals. The rated voltage of the generator is approximately50 volts to 100 volts when shaking the generator normally, if you connect a regular A 220-. A 15-volt light bulb can be seen glowing and causing people to tremble with an electric shock. This is also one of the torture methods used by the enemy to extract confessions.
Do not short the generator output, as this will have a slight demagnetizing effect on the ferrite magnet inside.
The above is only a rough memory. From the 1950s to the 1970s, this type of communication equipment was produced in China and was used in various military themes**, historical military themes** and rural work military themes**, railway work themes, etc.
There are often linked scenes, and they are also classic equipment among the props. You must save and collect them well.
For specific data and industrial production standards,Internet users are invited to follow up.
I used it to create key elements of the next generation keyboard around that time, so I have a rough idea of it.
The affected prototype was destroyed and sold by others in 2005.
This type of manual generator has a one-way clutch, which is a pair of grooves and spiral pins. Once the generator rotor is turned, it does not hit the hand, just like the overrunning clutch. of a bicycle.
This type of manual generator has a nylon gear with a diameter of about 55mm and a copper gear with a diameter of about 12mm to increase the speed. The specific modulus is approximately just under 1.0. . I can always save the relevant data.
Haha, turns out it has surpassed the Microsoft keyboard and is the only keyboard instrument in the world that requires such a deep base.
Here I would like to thank Zhong Xiaogang,Wen Hailin and especially the late Mr. Zhuo Jiong.
Does a manual generator need to add a step-down board to charge the capacitor?
No. Direct outdoor exposure and accidental contact of students without teacher assistance can have an impact on equipment and the human body. A hand crank generator is a direct current generator powered by a hand crank. It is not much different from a regular generator. The coil spins in a magnetic field, but the power is human power. Human power is 0.1-0.2 horsepower. the power is around 73-150 watts and cannot be sustained for a long time. Therefore, the power of a manual generator will not exceed 100 watts.
There is no need to add a voltage reduction board when using a manual generator to charge the capacitors. DC generator, directly connect positive to positive and negativeto the negative pole.Okay, but make sure that the voltage generated does not exceed the withstand voltage value of the capacitor. You can then charge the capacitor when you are producing electricity, but when you are not producing electricity you must prevent the capacitor from discharging. in the opposite direction. Connect a diode in series with the circuit.