David: Who knows what Rossi is using for the heating elements! J Things change on a weekly basis with him…
IIRC, earlier last year, Rossi said they used a “Programmable Lighting Controller”… PLC. However, that acronym has different meanings; to most in the USA, PLC stands for “Programmable LOGIC/LADDER Controller”. There was a lot of discussion on this very topic within the Collective the first half of 2011, so you might want to do a Search for articles using various keywords (PLC, ‘resistive element’, ‘band heater’. We covered many different ideas, including using one of the heating elements to form an E-field within the core… passing a current between the two heating elements… we can get pretty creative!! J Here are some link to Threads which cover the topic…. But be sure to scan entire posting as some of the relevant info is further down in the posting, in sections being referenced… http://www.mail-archive.com/vortex-l@eskimo.com/msg51041.html http://www.mail-archive.com/vortex-l@eskimo.com/msg49522.html http://www.mail-archive.com/vortex-l@eskimo.com/msg46416.html http://www.mail-archive.com/vortex-l@eskimo.com/msg49529.html http://www.mail-archive.com/vortex-l@eskimo.com/msg51010.html http://www.mail-archive.com/vortex-l@eskimo.com/msg46322.html http://www.mail-archive.com/vortex-l@eskimo.com/msg52470.html -Mark From: David Roberson [mailto:dlrober...@aol.com] Sent: Tuesday, January 31, 2012 10:36 PM To: vortex-l@eskimo.com Subject: Re: [Vo]:Name that tune Good question Peter. I have asked a number of questions on the DGT forum in the past but they do not answer consistently. The Vortex has a number of excellent members with a great deal of knowledge about many subjects. A question such as the ones that I have presented are much more likely to fall upon fertile ground here. Dave -----Original Message----- From: Peter Gluck <peter.gl...@gmail.com> To: vortex-l <vortex-l@eskimo.com> Sent: Wed, Feb 1, 2012 12:19 am Subject: Re: [Vo]:Name that tune "The question illuminates, not the answer" (Eugene Ionesco) Why you are not asking on the DGT forum? Peter On Wed, Feb 1, 2012 at 5:15 AM, David Roberson <dlrober...@aol.com> wrote: I have always assumed that the heating elements within the Rossi ECAT are using AC. The frequency of the current is assumed to be 60 or 50 hertz, but I do not recall anyone measuring it. One interesting possibility to consider is that the large AC magnetic field associated with this current contained within the core might be strong enough to agitate the nickel due to its magnetic properties at modest temperatures. Also, do we know how electrically conductive the core materials are? I wonder if the core net resistive value is consistent enough to carry current for heating power? What if the extra spike that we observe in the waveform can be triggered by the large magnetic field or current that flows within the core region? A lot of questions and few answers. Maybe some of them will cause a light to shine within one of our collective minds. Dave -----Original Message----- From: francis <froarty...@comcast.net> To: vortex-l <vortex-l@eskimo.com> Sent: Tue, Jan 31, 2012 9:56 pm Subject: RE: [Vo]:Name that tune Why does everyone assume the heater elements use DC? A transformer would be the easiest way to adjust the voltage or current to larger rms values and would explain the isolation transformer. The blue control box then might simply gate this AC power through the transformer for longer or shorter durations. This wouldn’t be called an RFG but it would have the same effect while simultaneously heating the reactor elements. Fran Jones Beene Tue, 31 Jan 2012 15:09:19 -0800 Mine too, and now ... the real reason for this inquiry - why do you need one? Coincidentally, as you mentioned in the preceding message, they claim NOT to use an RFG. Which technically does not mean they do not have a fair amount of RF noise in the reactor, does it? It means only that they have no dedicated RF generator. There are other reasons for having an isolation transformer than to protect your Variac and other instruments and computers from a source of disruptive electrical spikes, so it's not a smoking gun - but is there a good reason not to suspect either a spark gap or glow discharge arrangement inside the reactor somewhere? After all, if we were talking about resistance heating elements (ala AR) being your thermal input and your P-in, then an isolation transformer would not be needed, correct ?
