The Master Of Magnetics "Steven Mark"

[mrd10]

sorry Marco,

I've been reading too much, got my lines crossed, ah well i have enough to go on, and i wont post until i come up with something.

I'll keep reading posts here to see what goes on.

Sincerely,

Dom

[mrd10]

Dom , you dont need to appologize.... just make sure you know what Steven said about his device.

marco

Thanks   

[otto]

Hello all

Im dissapointed about what Mannix said not to wait for me until Monday. I think Im going the wrong way!!!!

Ok what I saw:

On one side of the control coils I have connected the function generator and on the other +8V. Pulsing two frequencies.
The upper coil is pulsed with one frequency and the lower with another.
We are all looking for a resonant frequency and thats ok. Now, what happens when I switch off the frequency generator? I loose my voltage and of course the frequency. Then I switch  my function generator ON and what happens? Nothing!! No voltage or if I had luck the voltage is here but I have the frequency lost. So I have to tune to the resonance frequency and everything is ok. Then I took 2 magnets and placed them UNDER the TPU 180? each from other and tried the same again. I lost my frequency again and a few times again. Then I took another 2 magnets and put them on the top of the TPU and switched again the frequency generator off and a minute or so again on. What happens? The voltage rised to the resonant frequency and the current also. I tried this a lot of times and I think it was ok. It takes 10-20 seconds to establish the frequency but I saw another thing too: when I reached the resonant frequency by regulating it with hand the ampermeter showed 400mA fron the power supply but with magnets the ampermeter showed only 150mA was consumed from the power supply!!The reason the magnets are used is to start the work of the TPU at resonant frequency and i can tell you, you cant have a TPU working without magnets. I needed 4. Two under the TPU two on top. Please, dont ask me about the N-S side of the Magnets. I had no time to figure this out.

About turning the TPU 180?

I was very clever and wanted to see if the TPU would work if I turn it 180?.
What I saw: NOTHING!!!

What happens:
I was pumping the frequencies into the lower and upper control coil (as usual) and on the other end of the coils was +8V. On my power supply I have a ampermeter connected. It showed nothing and so I was looking if there any connection was loosed but nothing. I was looking everywhere but didnt see anything wrong. The function generator was ok, power supply ok but the TPU didnt work. I lost a lot of time but tht TPU wont work. Looked to me as it was blocked. I turned it then again and it worked ok.

About the spinning needle

The needle was not spinning when I had to connect the wires of the TPU and I was wondering why.
The reason was very simple. The needle was not magnetized. I dont know why or how but the needle lost the magnetization and I couldnt it magnetize anymoore. Why??

When I connect a load to the collector coil(s) the output voltage drops a few volts but of course I have not lit any light bulb.

Now I have a question to you: when i short the output of the TPU nothing happens. The voltage drops a little and nothing moore. No heating, the current from the power supply and from the function generator is stable... please answer because Im not the brightest.

Please dont ask me for drawings because I had to rewind the complete TPU and I made the drawings but they are not more relevant. Now Im using only 2 collector coils with 4 segments each.

Otto

[mrd10]

sorry Otto to be a pain, did you try bifilar windings for 4 segments?

Best Rgds,

Dom

[otto]

Hello

@Dave

On the scope I see the signal from the 50 Hz I think but, please help, when I short the collector coil why is nothing happen?
Another question: how many volts does the scope probe 1:1 apply to the coils?

Here are the dimensions:

outer diameter of TPU: 14 cm
inner diameter of TPU: 10 cm
height of TPU : 5 cm

collector coil:horizontal 1000 fine litz wire 0,22mm diameter of wire

control coil: each 170 turns 0,5 mm wire in 4 segments

I have now 2 collector coils not 3.

transformer coil: wound all around: I had each segment 56 turns 1mm wire, 4 segments but must today calculate again the number of turns.

@ Mannix
thanks, I will buy a kompass today. I have now a little magnet hanging over the TPU and it looks to me that it would maybe rotate but is too heavi.

@ mrd10
my coils are the regular one no bifilar but I know bifilar is much better.

Otto