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

[giantkiller]

Here is the pic of the reconfig of the larger wires. I still have to harness up the smaller wires. That is later. I got to the smaller footprint. Turned it on and it still heats up. The footprint is less noisy as far as rattling goes. So I put in the magnabuzzes inside. I redid the compass test and the whole loop is opposite the earth.
Now this was unshielded. I'm sorry. So I left the freqs wide off. I draw 3a from the suppply and the coil sits at 2.9a. So as far as conventional theory goes no OU. But when the ring is shielded we can play with the tuning further.
So my list is:
shielding, pots, mosfets. That will put me at a stopping place on this TPU, maybe. Or who knows, I can add the crystal clocks to close down the drift. Starcruiser is going to add .47uf caps through out. I can do this too. But SM, Lindsay, and I know and have seen when the harmonics get real close it gets dangerous. I did it the dangerous by grabbing the ring. But man you can feel the sweet spot hit. Probably my flesh cooking, eh?
Anyway, safety is next. Time to get my badass off the grille. I think I am done.

This TPU came from another experiment and it was able to migrate to the TPU#4-b session. Each time I change something on it I can see new things. Before Ottos diag I didn't know this thing would cook, or shake mags, or sing. I just wanted to see harmonics to get kicks. Well now we can put those issues to rest because now its a given. In fact the warning is out that the ring is dangerous. Pretty good leap, eh? With other team members crankin' up, the new blood and experience should shed alot more to this. Right now this platform is a good leap for verification of achievement of previous struggles and we can ask greater questions and try greater things.
I am still pleased with the freak wave harmonics going on. Too bad they are dangerous. It took alot to get here only to be cautious. LOL.

A question I have is 'What would me adding my own thread do?' Just a new start for Monday? And what would I call it? 'When giants fall!' I almost talked myself into it. Let me know what you all think.

My vote is "I don't click the ads".

Hi Lindsay.

--giantkiller. I am around.

p.s. I am quite pleased with today's goings on.

[giantkiller]

555 output to 100 ohms to the tip41b base, emitter to ground, then the collector to one of the coil freq connections.  Otto put 12ohms but I use 2 parallel 10ohm-10 watt for 5 ohms on the collectors.
Simple?
--giantkiller. Sorry about latency.

No Problem. Thanks for the clarification. So then I'm assuing that the + marked on Otto's diagram is where the feedback coil connects to the positive side of the DC supply?

God Bless,
Jason O

yes. straight to it.

[giantkiller]

"One Ring to rule them all, One Ring to find them,
One Ring to bring them all and in the darkness bind them."


"My precious"...

[Jdo300]

OK, another question about the 555 tmer. What values are you using for R1 and R2? I think I heard somewhere that a 200KOhm (multiturn) pot was used but for which value and what resistor would be used for the second R value?

God Bless,
Jason O

[giantkiller]

put 2 duty and freq. But if you use multiturn you will be one than the rest of us. Youll be able to get the freqs locked on the freak wave. and that leads to Microsecond runaway. SM warned about that. With cheap pots it is very hard to do. That is your warning.
OK?