user TURBO?s replication of Steven Mark?s TPU ?

[Grumpy]

No wonder Mannix and SM no longer help you guys out.  Like vultures on a carcass, you wait for scraps.

SM already gave you more than enough clues.

Stop pestering the hell out of Otto and start plugging components and winding coils!  a little basic EM theory wouldn't hurt either...

[otto]

Hello all,

@Aether22
this morning at 5 I tried something: I disconnected the + from my power supply, disconnected everything from my bottom collector coil and as you said, connected my scope to this bottom collector coil.
all other connections as in my picture i left as they are. Now I pulsed the coils with 1 frequency and expected to see nothing BUT

the signals are great!!! With the coils pulsed with 1 frequency I saw strange signals. First I saw only a thick horizontal line, then the frequency dropped and I saw this signals with say 100mV and then the signals rised to over 400mV and then dropped, the frequency rised and I had again a thick horizontal line and then again a signal at 100mV....I was 3m away from my TPU so I can say I was not the cause of this signals. It looked like the TPU has his own "life"!!
In the next days I will exactly test what you have sugested because I see there is "something" or to say it better there is a "lot" of things going on.

@Grumpy
thanks a lot, I have only one question: in your 7MHz oscillator you are using 2N3904 transistors??  Im asking because I cant see any signals on my scope or they are too small?? Ok, I see a triagle signal, but a little one. I think we have to discuss the shematic you posted because it looks good and is easy to build.

@Darthmagnet
yes, thats it, sorry I dont speak French

@To all
guys I think its time for you to built your coils and make TPUs. You have all you need and dont think it will cost a lot of money!!

Thanks for your ideas how to measure the brightness of my bulb but I have the best way to do it: when the time comes and I have to measure the brightness of my bulb I will use another of the same wattage, connect it to the 230V in my wall and see if its the same brightness as the bulb connected on my TPU. A few watts difference is not sooo important.
Guys, I think you are things tooo much complicating. Some of you are building oscillators with a lot of electronics, microprocessors....new NASA centers.

In the end of all this you will only need 1 MOSFET with 1 Frequency+2 harmonic frequencies, 1 potentiometer to tune the frequency and thats all.
How I know? Look at SMs 6" TPU. All the electronics is IN the TPU and there is not so much room. And of course my logic tells me the TPU is not soooo complicated as the people think.

Otto

[giantkiller]

Thanks to Otto, Starcruiser, Grumpy and Vortex1, and Aether22. I had TPU#3&4, 3 layer config and can wire it up a large number of ways.  I will try the latest posts here and let everyone know.

Great steps guys.

--giantkiller. I had to take a hiatus.

[otto]

Hello all,

I just started a new topic about the TPU in German. As you all see my English is not the best but I will of course post in English and from now in German too.

Otto

[otto]

Hello all,

the next days I will not post because I have no access to a PC.

I wish you all great people here and your families a

        HAPPY NEW YEAR

Otto