Lords of the Ring

[giantkiller]

GK,

Nice box. I have an old microwave that is not used and I thought of putting the TPU inside. But I am sure that I will be told that the microwave is running the coil.

Tnx. Cheap too compared to the headache. I don't think the micro will cause you any grief.

--giantkiller.

[MrMag]

GK,

I've tried both ways. Direct to the coils and then through the MOSFETs. Otto also mentioned that he is not using the resistors (12 ohm) that he shows in the drawings. Do you think I should put them in?

Right now the time is around 1:00AM. I am in Canada about 30 miles south-east of Detroit.

Tim

[Grumpy]

can you post a description of your setup?  Doesn't sound right.  should have small pulse or other triggr to mosfet and then large pulse across mosfet.

[MrMag]

Grumpy,

I know. I keep thinking that I wound or connected something wrong. I must have checked 20 times. All windings are wound clockwise. Four separate windings per layer connected as Tesla patent / Otto's explanation. I really think that the coils are alright. I think my problem is with the signals. As I mentioned, I am using 3 separate frequency generators. I feel that this is the problem since I am not using a single power source. If the three control windings were separate it should be no problem. But, according to Otto's drawing, the control winding are also connected to the collectors which is where I think the problem of "common ground" could be an issue. Even with the MOSFETs being driven by three generators, there would be a common ground issue.

One thing that was interesting is that I connected the control winding layers in series and then connected them in series with the collectors, just for the hell of it. I was getting 20mv spikes that ran around the 2.5kHz range. I shut off the generators and moved it away from everything. Only had the scope hooked up. Pretty weird.

[Grumpy]

Got a nice buzz going, so let's hav a look:

hmm - hang on - buying some bulk components in another window - caps and resistors...

one more time:

1. many ways to wind coils and connect them.
2. 3 frequencies - not my idea - fundamental, 3rd, and 5th, produce steep rise and fall of pulse - this is good - must be synched or doesn't work.
3. shit can the 3 freqs and just send a pulse to your mosfets - short pulse - recommend mosfet speed up components - see "Pulsers only" section pdf's.  You guys are mixing ideas together  - crossing them up - and getting freaky stuff

Otto's wiring is NOT the only way, SM's wiring is not the only way - shit - ain't even the best way or even that good - inefficient as hell.