Hi All,
I’ve built the Bedini SG according to the first manual and started on the second manual, awaiting to implement a speed sensor/tachometer so I can really fine tune it accurately (so matched transistors/resistor and pot-meter are already built in).
Now I have a couple of theoretical questions regarding the understanding of the machine, which I hope some of you can help me with.
1- When John talks about “firing” of the coil in his DVDs, he’s talking about the spike of the H-shape correct?
2- John mentions in his DVDs that the firing takes place AFTER a magnet passes the coil. Am I correct in saying that this statement only applies if the SG machine is running in REPULSION mode?
Since my SG machine is running in ATTRACTION mode, the firing takes place when the magnet is more or less right above the coil. Correct? (see Attachment 1)
3- Looking at the H-shape, measured with my scope (Picoscope 2206B) over just 1 coil, can someone please explain to me exactly what goes on at the positions indicated in attachment 2, image 2:
3a-I assume section A and D represent the nominal secundary battery voltage level (indicated also by the vertical line E?
3b-What is happening exactly at section B and C? (in Energy from the vacuum DVD 6 @ 57min John mentions that in this section B the “device” is trying to be a “negistor”, but with that explanation it still is clear as mud to me .
For those who reply/answer; please talk in lay person terms. I have a mechanical background, but for the electrical stuff I really am learning as I’m building. At the same time trying to catch up on theory via the book of Forest Mims and the Energy from the vacuum DVDs.
Many thanks in advance!
Rodolphe
I’ve built the Bedini SG according to the first manual and started on the second manual, awaiting to implement a speed sensor/tachometer so I can really fine tune it accurately (so matched transistors/resistor and pot-meter are already built in).
Now I have a couple of theoretical questions regarding the understanding of the machine, which I hope some of you can help me with.
1- When John talks about “firing” of the coil in his DVDs, he’s talking about the spike of the H-shape correct?
2- John mentions in his DVDs that the firing takes place AFTER a magnet passes the coil. Am I correct in saying that this statement only applies if the SG machine is running in REPULSION mode?
Since my SG machine is running in ATTRACTION mode, the firing takes place when the magnet is more or less right above the coil. Correct? (see Attachment 1)
3- Looking at the H-shape, measured with my scope (Picoscope 2206B) over just 1 coil, can someone please explain to me exactly what goes on at the positions indicated in attachment 2, image 2:
3a-I assume section A and D represent the nominal secundary battery voltage level (indicated also by the vertical line E?
3b-What is happening exactly at section B and C? (in Energy from the vacuum DVD 6 @ 57min John mentions that in this section B the “device” is trying to be a “negistor”, but with that explanation it still is clear as mud to me .
For those who reply/answer; please talk in lay person terms. I have a mechanical background, but for the electrical stuff I really am learning as I’m building. At the same time trying to catch up on theory via the book of Forest Mims and the Energy from the vacuum DVDs.
Many thanks in advance!
Rodolphe
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