On Sunday 06 December 2015 22:55:27 Ken Strauss wrote: > I assume that you mean a Surgistor(TM). You'll find them for very high > prices on eBay (the one currently listed is $25!). Google shows > several places that claim to have them. > Sound like they renamed it so they could charge antique prices for it. They were just a couple bucks back in 1985.
I'll google the net for the new name. Thanks Ken. > > -----Original Message----- > > From: Gene Heskett [mailto:[email protected]] > > Sent: Sunday, December 06, 2015 10:26 PM > > To: Enhanced Machine Controller (EMC) > > Subject: [Emc-users] Poor mans soft turnon > > > > Greetings all; > > > > Before tv's lost their crt's, there was a component in the power > > inlet > > circuit > > > that had a very high negative temp coefficient, which was used to > > create a high voltage drop when it was cold, which in turn forced > > the first few > > seconds > > > of its power draw after being turned on, thru the degaussing coils > > wrapped around the crt in order to demagnetise it. > > > > That voltage drop heated it, and it got hot enough to get down to > > just a > > couple > > > of ohms, which was not enough to overcome the MOV in series with the > > coils. > > > This also allowed the tv itself to be soft-started, and it worked so > > well > > that it > > > was often the major part failure in the tv for the first 3 or 4 > > years. > > > > About 3 or 4 of those, wired in parallel, would also serve as an > > inrush > > limiter > > > when I turn on the power supply for my G0704 mill. But the parts > > houses > > we > > > had locally have all evaporated. I just checked a couple surplus > > places > > without > > > finding any of those critters. > > > > Does anyone have a suggestion as to where a small handfull of these > > could > > be > > > sourced? Usually bare, they look like a graphite quarter coin with > > a lead > > wire > > > soldered to the middle of a silver plated dot in the middle of each > > face. Usually slightly thicker than a 'merican quarter. > > > > When I was setting up the mill, and building that supply, I had > > wired up a > > 4 > > > plex on the wall behind it, putting it by itself on a 20 amp > > breaker. > > Turning it > > > on, trips the 20 instantly as the motor supply has a huge amount of > > microfarads, probably in excess of 80,000 uf, mainly because that > > was the > > size > > > of the caps I could source, NOS, locally by the fine old art of > > horse > > trading. > > > So, while it draws less than 3 amps with the spindle motor off, and > > could > > reach > > > 18 if the motor was in a LR state, but it takes a 30 amp breaker to > > withstand > > > the in-rush. If I could find some of these critters, building them > > into > > that motor > > > supply, I could put the 20 amp breaker back in and it wouldn't be > > quite so > > ill > > > eagle if an inspector looked it over. > > > > Cheers, Gene Heskett > > -- > > "There are four boxes to be used in defense of liberty: > > soap, ballot, jury, and ammo. Please use in that order." > > -Ed Howdershelt (Author) > > Genes Web page <http://geneslinuxbox.net:6309/gene> > > ---------------------------------------------------------------------- >------ -- > > > Go from Idea to Many App Stores Faster with Intel(R) XDK Give your > > users amazing mobile app experiences with Intel(R) XDK. > > Use one codebase in this all-in-one HTML5 development environment. > > Design, debug & build mobile apps & 2D/3D high-impact games for > > multiple OSs. > > http://pubads.g.doubleclick.net/gampad/clk?id=254741911&iu=/4140 > > _______________________________________________ > > Emc-users mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/emc-users > > ---------------------------------------------------------------------- >-------- Go from Idea to Many App Stores Faster with Intel(R) XDK > Give your users amazing mobile app experiences with Intel(R) XDK. > Use one codebase in this all-in-one HTML5 development environment. > Design, debug & build mobile apps & 2D/3D high-impact games for > multiple OSs. > http://pubads.g.doubleclick.net/gampad/clk?id=254741911&iu=/4140 > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Go from Idea to Many App Stores Faster with Intel(R) XDK Give your users amazing mobile app experiences with Intel(R) XDK. Use one codebase in this all-in-one HTML5 development environment. Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs. http://pubads.g.doubleclick.net/gampad/clk?id=254741911&iu=/4140 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
