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Yes dear the LM7812 is able to convert 12v from 50v

@@etinventor sure it's not max 35v?

the antina turns 5 to 10 is good.

YES Dear Lm7805 ic , 10uf cap, one diode, led light , 1k ohm resistor

Ok please wait i will create it

NO Dear , This Circuit can not work with Antina , Because Antina Recived the Singnal Waveforms

The maximum is 30v, but it is related to the use current and should be limited to the maximum power consumption of 15w.

​@@etinventorphir discription MN 50 volt se 22 q likha hy😅

Ghadha banate ho ch*tiye L7812 ic max 30volt to 12 volt converter ic hota hai..

Dear Viewer, Yes your right, when The potentiometer resistance is increased will the Transistor Gate Current is Decreased . Therefore Transistor Output voltage Decreased. Moter will run slow speed .

Te agradece

Dear viewer, In this circuit Is Required 75nf75 or z44 Transistor. The variable resistor only control gate supply for transistor But very very less current supply for transistor gate. Transistor will control output voltage. Transistor must required in this process

ok

Dear viewer, when your potentiometer in the circuit, you practically have a 10k resistance in the circuit which limits the current flowing through the this resistance If the resistance is small enough, will enough current flow that the the transistor . Recommend you please Used 5k or less resistance of Potentiometer. And some resistance Available in the Transistor. therefore some voltage and current less. Ohm law I = V / R V = I×R

Normally, most people would expect that to increase the speed, you would turn the dial clockwise, how would you need to wire this to achieve that please? Also, would you add a resister if the power supply and motor was 12v?

The input voltage is divided across both sides. If yo.u put in 12 volts and turn the know the voltage will drop. Turning to the left increases resistance. When resistance increases, so does the voltage drop. Turning to the left should reduce voltage drop to the transistor since reducing resistance to input of transistor increases current and voltage. Voltage should be reduced to transistor causing a voltage drop. If you are using a voltage regulator then the voltage will be set at voltage set by regulator.