Lol, how did you blow the Transistor, did you run your Circuit with 110V?
At the Base are usual about 0,2-1,2 Volt.
The Transistor can handle about 3 V and 7 Amps.
But my Fan did first work after a Week too, first Time i did trow it for a Week beside, too
and this one was even with single Wire wound, so dont worry. lol.
Anyhow its not that simple for a Beginner, as it seems, when you figured it out once.
Ok i try it again.
Each Coil has 1 Wire with 2 Ends.
And as Imhotep says at his Video,
each Coil has a inner Side Start of Wire and one outside from the Coil.
Therfor, the 2 Ends from one Wire from a Coil becomes a '-' and '+' End (of Wire).
When you got a bifilar wounded Coil, you twist the 2 Wires outside together, and got one +.
Same with the 2 Wires, what end at the Core from one Coil.
Now you have one Coil with 2 twisted Ends, where the one outside is the Plus,
and the other End, what is inside is marked as Minus.
Do that with all your 4 Coils around the Stator.
Now you got 4 Coils with a + and -.
Now twist 2 + Wires from 2 Coils, what are close together, lets say, the one at 12 AM and at 3 AM.
Same with the inner End, the '-' from this 2 Coils.
Twist them together and you got now one Plus and one Minus from 2 Coils.
And still 2 Coils left.
Do the same with the coils at 6AM and 9AM.
At last, there should be 2 Plus from 4 Coils, and 2 Minus.
Plus allways start outside the Coil, Minus inside.
Total there are now 4 Wires.
The Plus from the Coils at 12AM and 3AM is connected to "+"Batterie.
The Minus from this Coils go to the Collector/Case(at a 2N3055).
Then the Plus from the Coils at 6AM and 9AM is connected to Emitter and "-" Batterie.
and the Minus from this Coils to Base/Potentiometer.
Turn your Pot a bit higher at first, that it doesnt blow your Transistor again.
The Fan should start some squezing, when you turn it with your Finger.
Then turn the Pot some lower, till the Fan can run.
You can still measure your Coils between "+"Batterie and Collector or "-"Batterie/Emitter and Pot/Base, they should have about same Ohm usual around 60Ohms.
I got a different at some of my Motors from 15Ohms, seems that is, what they can close handle,
or one from this Coil will go hot, if the difference is to big.
And well, not sure, if your Transistor is blowed, sometimes it only looks like.
Mine been strong, since what i did all to them

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