Stan, I looked at Digitoxin's and Dave Ball's schematics. It appears they are using FETs to switch, transistors are much faster. You have an LCR time constant....
dtb1000@...
Sep 4, 2001 3:13 am
253
http://galaxy.cofc.edu/circuits.html...
Webdrifter
webdrifter@...
Sep 4, 2001 3:13 am
254
... Stan, all, you might be interested to see this update on the MEG project status in Bearden's recent correspondance: ...
Ashley Rye
ashley7@...
Sep 4, 2001 3:14 am
255
... Webdrifter, Hmmmmmmmmm. I'm not at all sure how practically to do this, that is separate these different currents. Even if the, what skin or heaviside...
Webdrifter
webdrifter@...
Sep 4, 2001 3:14 am
256
The TL494CN has an output spec that states the pulse rise time falls between Min:=100ns and Max=200ns. A faster switching device isn't going to help unless the...
dtb1000@...
Sep 4, 2001 3:15 am
257
For sale: 2 sets of AMCC-500 Metglas C sections. Perfect condition. Not used. Will accept three of these magnets: ...
William S. Alek
intalek@...
Sep 4, 2001 3:16 am
258
Hi Andrew, I will be able to consolidate the core shipment with a shipment of parts I need for business, so the cost from China will be negligible, only...
David Ball
david@...
Sep 4, 2001 3:17 am
259
... I have paper copies of the above two papers (the second one is Mark A. Heald, "Electric fields and charges in elementary circuits) which I can scan and put...
Matthew Stewart-Smith
M.A.Stewart-Smith@...
Sep 4, 2001 3:19 am
260
... of ... DTB, I have used both MOSFET transistors and BIPOLAR transistors. The bipolars appear to be somewhat faster, sure. Re: Overcoming LCR time...
Stan Mayer
StanMayer@...
Sep 4, 2001 3:31 am
261
Hi DTW, Digitoxin ... I have now tested the MEG inside a Faraday shield and with the Oscilloscope isolated from earth (isolation transformer). As before the...
David Ball
david@...
Sep 4, 2001 1:05 pm
262
Stan, A snip from latest Bearden correspondence. Simply put, this is what happens. We use a special core material which has a unique capability: it receives...
David Ball
david@...
Sep 4, 2001 1:05 pm
263
... Oscilloscope isolated from earth (isolation transformer). ... acid) Only the one 'Hot' secondary is terminated and brought out of the faraday shield. The...
dtb1000@...
Sep 4, 2001 6:34 pm
264
David, Smells like you are really on to something here. I keep fading in and out of understanding it though. Could you send me one of your old emails that ...
Michael Couch
cmichael_couch@...
Sep 4, 2001 10:39 pm
265
DTW, You made these comments; I haven't read a post from this group stating that they were using a JLN model. Your schematic resembles the parts list of JLN....
David Ball
david@...
Sep 5, 2001 12:05 am
266
Michael, History: In a post from Digitoxin he described how "displacement current" causes inaccurate measurements on the MEG secondary. I mistakenly assumed...
David Ball
david@...
Sep 5, 2001 12:15 am
267
... ^^^^^^^^^^^^ I hope that's deliberate. :-) ... There's a program (for Windows) called HTML-Kit which is available for free (not just evaluation but...
Matthew Stewart-Smith
M.A.Stewart-Smith@...
Sep 5, 2001 12:16 am
268
Davide, Thanks for a prompt and thorough reply. But... you left out the amperage of the 700Vac 175Khz output and the comparison with the input. Wouldn't that...
Michael Couch
cmichael_couch@...
Sep 5, 2001 1:39 pm
269
In closing, do you have any recommendations (p/n's and sources) for relatively inexpensive and readily available fast bipolars? I would appreciate SPECIFIC...
Graham Gunderson
motionlessgenerator@...
Sep 5, 2001 1:39 pm
270
... Smith@d...> wrote: (heavily snipped) ... for ... easily put ... providing a ... Matthew, Thanks for the recommendations. Stan...
Stan Mayer
StanMayer@...
Sep 5, 2001 3:05 pm
271
... <motionlessgenerator@h...> wrote: (heavily snipped) ... sure easy to find. The drive requirements are still less than peachy (examine something like a...
Stan Mayer
StanMayer@...
Sep 5, 2001 3:12 pm
272
... (heavily snipped) ... outside of the wire. ... http://cil.andrew.cmu.edu/rchabay_extra/circuit.pdf ... Webdrifter, I looked at the .pdf. Interesting...
Stan Mayer
StanMayer@...
Sep 5, 2001 3:18 pm
273
... The statement that Tom B. uses microwave switching comes from Tom himself. The reason they choose for that is because steaper slopes of the input signal...
Webdrifter
webdrifter@...
Sep 5, 2001 10:58 pm
274
Matthew, It would be great if you could put all those files in the files section. Webdrifter...
Webdrifter
webdrifter@...
Sep 5, 2001 10:58 pm
275
<SNIP> Stan, A snip from latest Bearden correspondence. Simply put, this is what happens. We use a special core material which has a unique capability: it...
Webdrifter
webdrifter@...
Sep 5, 2001 11:18 pm
276
Webdrifter, Yes geometry must be important - I agree. I can organise a computer simulation program if we can nut out some of this Science. You seem to have a...
David Ball
david@...
Sep 6, 2001 1:22 am
277
Hi All, Last call to any-one interested in purchasing one of these cores. Here is a brief comparison between the Chinese NAC nanocrystalline core and the...
David Ball
david@...
Sep 6, 2001 1:22 am
278
How do you reconcile Beardon's statements with JLN's MEG experiment? DTB ... true. ... himself. ... input ... slope. ... of their...
dtb1000@...
Sep 6, 2001 2:50 am
279
Webdrifter, Yes geometry must be important - I agree. I can organise a computer simulation program if we can nut out some of this Science. You seem to have a...
Webdrifter
webdrifter@...
Sep 6, 2001 2:51 am
280
Webdrifter, Thanks for your insightful contributions recently. Your thoughts about time helped me at least. David David, I'm of the oppinion that I'm bearly...
David Ball
david@...
Sep 6, 2001 4:21 am
281
Michael, You asked: You left out the amperage of the 700Vac 175Khz output and the comparison with the input. Wouldn't that be key information? Would you...
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