Sounds like a case of the tail wagging the dog. The catalogs have inexpensive 220/110 stepdown isolation transformers in various volt-amp ratings, complete with power cord and built in receptacles. I use one on the bench in reverse to power 220 volt things people bring in. The auto-transformer units are smaller and cheaper yet but it takes a little knowledge to apply one without hazard. Jerry Silverman Greentron Inc 4 Newland Ave Greenville SC 29609 864 232 3889 Fax 271 2080 mailto:greentron@xxxxxxx ----- Original Message ----- From: "Joe Batchelor" <jbc@xxxxxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Friday, December 20, 2002 11:43 PM Subject: [TechAssist] Re: 220v > > In Texas we have oil rigs out in the Gulf of Mexico that use 220 VAC. > I assume 110 is not available there. Many years ago I had a Sony come > in the shop with a power supply problem and the AC cord had been cut > and a new 110 V plug was added. No one told me it was 220 and after > I got the supply running it had low voltage, kind of like a bad 5U4. > I did not have the exact schematic and it was hard to convince anyone > that it really needed 220 v. It is now common knowledge that the off shore > rigs run 220 VAC. > > I do not have the answer on the CTC187. > > Joe Batchelor CET TX-80 > > 12/20/02 9:48:23 PM, "Electric Medic" <info@xxxxxxxxxxxxxxxxx> wrote: > >Yeah, we have 220 coming to our house, one 110 on one side of breaker box, > >and another 110 on the other side. I wired a special 220v outlet to my > >building outside. But in the tens of thousands of TV's that I have fixed, I > >have never had any customer that lived in the states say he used 220v on his > >TV. I don't know or care what they use overseas. I still can not figure out > >why anybody in the states would use 220v on a TV, and how they would even > >plug it in. I know the manual says this chassis will work on 220v, but why > >in the states? I am still confused about the member that says the CTC187 > >works fine on 110v but hums on 220v. I have not seen it answered does he > >live in the states or overseas? Does he have two power cords or are they > >running 220v to a standard 110 outlet. I do not think I saw this addressed, > >or I missed many post. > > > >Perry > >Electric Medic > > > >-----Original Message----- > >From: techassist-bounce@xxxxxxxxxxxxx > >[mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Jeff Dougherty > >Sent: Friday, December 20, 2002 10:00 PM > >To: techassist@xxxxxxxxxxxxx > >Subject: [TechAssist] Re: 220v > > > > > > > >Now wait...don't we all have 220 coming in to our homes now? > >If you have an electric range, it requires 220...two hots and a neutral. > >110vac is distributed to the rest of the wiring. > >This may be a little off topic for this list, but I still believe it to be > >an > >interesting topic...as well as a learning one. > >In-other-words, doesn't the step-down transformer send 220 to our panels? > >support@xxxxxxxxxxxxxxxxxx > >FAX 717-564-4952 > >Jeff Dougherty > >Intrepid Video & Electronics Be careful of your thoughts. > >501 Luther Rd They may become your words > >Harrisburg, PA 17111 any moment. > >717-909-8844 > >VCR tips, electronics info & general interest. > >www.intrepid-video.com www.tech-repair.net > >www.thetoolcaddy.com www.9-11-2001tragedy.com > >*********************************************************************** > > > >----- Original Message ----- > >From: "Damon" <DAMON101@xxxxxxxxxxxxxx> > >To: <techassist@xxxxxxxxxxxxx> > >Sent: Friday, December 20, 2002 6:52 AM > >Subject: [TechAssist] Re: 220v > > > > > > > >This really doesn't make economical sense, tri-phase systems in residential > >areas?? > > > >REALITY: 2 wires provide power, the only difference is the transformer setup > >that drops down the power to your home. In the land of 110 our transformer > >outputs 220V with a center tap that delivers 2 - 110V supplies or 1 - 220V > >supply. (Hey, isn't that sweet....3 supplies in one, eh?). > > > >As for the european 220V supply system......I can only guess, but you do not > >have that Center-tap. And I really doubt that the electric company is going > >to use 2 wires for power, then strap on a 3rd wire for grounding purposes > >(what purpose would that serve, except to reference the metal toaster casing > >to your bathtub water??). I'm sure the 220V tranformers have no practical > >need for earth ground, since all the electronics would behave as though they > >had an "Isolation transformer" on them. (That's the stepdown > >transformer...outside your home). > > > >Personally, I've heard that 110V is more dangerous than 220V......but I > >don't see that as a logical argument...What.....110 has less voltage, > >therefore we enjoy holding onto it longer, thus toasting us, but not the > >europeans???? > >If anybody has an answer to why 220 is safer than 110.... I'm listening. > > > >And that TRI-PHASE residential power supply??? Man, that is a load of > >hooey....of course, the government planners weren't reaching into their > >pockets, so I can assume they tapped into your dad's or grandad's wallet?? > > > >Damon Brunger > >damon101@xxxxxxxxxxxxxx > >Telrad Electronic Services > >Ft Wayne, IN 46815 > >----- Original Message ----- > >From: "Vilhelm Boor" <villyboor@xxxxxxxxx> > >To: <techassist@xxxxxxxxxxxxx>; <techassist@xxxxxxxxxxxxx>; > ><techassist@xxxxxxxxxxxxx> > >Sent: Friday, December 20, 2002 8:29 AM > >Subject: [TechAssist] Re: 220v > > > > > >> > >> Villy Boor > >> Boorelec Durban > >> I have to come back with a post script, To get voltage for a TV at over > >200V would require you to use a transformer. I am sure there could be other > >methods using odd switching type devices but extremes of design like that > >would be nonsense as it would be cheaper to get the correct model. I can not > >see where the smoke would be derived if you stuck this on your TV as I am at > >a loss as to how you would hook it up. > >> On Fri, 20 Dec 2002 07:59:10 > >> > >> -- > >> > >> On Fri, 20 Dec 2002 07:59:10 > >> Vilhelm Boor wrote: > >> > > >> >Villy Boor > >> > Boorelec Durban > >> > I am shocked that I know more about your power supplies in North > >America than seemingly you its residents do. North America works on 110V and > >you are stuck with that, tough its not as safe and losses are greater. Now > >you have a situation where you wish more voltage, you have to cheat The > >mains supply is 3 phase, it is usual to run a line down a street and try to > >balance the power by having house 1 on phase 1 house 2 on phase 2 etc. To > >get 220V you have to cheat, you use 2 phases so a plug has 2 live's. But why > >in the name of Freddy would we have to do that. Options on the back of TVs > >have gone, that requires you have a mains transformer, costs money is a no > >no. American TV is only viewable in America and a few other countries, the > >rest of us use the PAL system a much later and superior system, it follows > >then there is no requirement for your sets to work here or X. No we have > >standard 3 pin plugs (flat Pins pointing at 10 and 2 with an unused earth at > >6) nominal fuse volt > >> a > >> > >> > ge > >> > is 4A and there is no mystery > >> >-- > >> > > >> >On Thu, 19 Dec 2002 21:54:26 > >> > Julian Panizo wrote: > >> >> > >> >>In the countries with 220-240 V many sets have the 110 V option via > >switch > >> >>and a few have the voltage change automatic. The household wiring is two > >(2) > >> >>conductors, normally one hot and the other neutral, derived from a > >street > >> >>trifasic supply. In a few countries you get in some places 220 and > >others > >> >>110. > >> >>Julian > >> >> > >> >>Julian Panizo > >> >>C.C. 1867 Asunción Paraguay > >> >>Phone/Fax 595 21 601913 > >> >>panizo@xxxxxxxxxxxxxxx > >> >>----- Original Message ----- > >> >>From: "Electric Medic" <info@xxxxxxxxxxxxxxxxx> > >> >>To: <techassist@xxxxxxxxxxxxx> > >> >>Sent: Thursday, December 19, 2002 8:41 PM > >> >>Subject: [TechAssist] Re: 220v > >> >> > >> >> > >> >>> > >> >>> We STILL have not answered the QUESTION. Does this guys set work on > >> >>> 220volts. He said the set worked on 110v but not properly on 220v. I > >can > >> >>not > >> >>> believe that the set was designed to work on 220v using the same power > >> >>cord > >> >>> that came with the set. Every 220v circuit I have seen here in the > >states > >> >>> has a different cord (larger plug) with two hots. Is this some special > >> >>> CTC187AD. I think this is important enough to answer. We all know that > >220 > >> >>> has to hots and a neutral, and 110 has one hot and a neutral. I am > >> >>> interested how in the world he is plugging a CTC187 into a 220v > >outlet. > >> >>> Please someone, or the owner of the set EXPLAIN. Everyone that I have > >seen > >> >>> will smoke if you apply 220v. This is driving me crazy. Why would > >anyone > >> >>> want to run his set on both 110v and 220v anyway? It seems to me if it > >> >>> worked on 110v, that should be good enough. Very confused here in > >Georgia. > >> >>> > >> >>> Perry Bower > >> >>> Electric Medic > >> >>> "It's Cheaper to Keep Her" > >> >>> http://www.electricmedic.com > >> >>> Check out the Electronic Repair Screensaver We created. More Images to > >> >>come! > >> >>> To download these Collections you must first install the Eyetide > >Viewer: > >> >>> > >> > >>>http://www.eyetide.com/download/?s=O3OfmSLHXygGHCv1W6Gz3Bgjtq3DNNMNdcKsYS V > >GC > >> >>> "We're Number One Where it Really Counts, With our Customers" > >> >>> 3850 Washington Road Suite 5b > >> >>> Martinez, Georgia 30907 > >> >>> Phone: 706-8MEDIC4 (863-3424) > >> >>> Phone: 706-863-3474 > >> >>> Fax: 706-863-2316 > >> >>> mailto:info@xxxxxxxxxxxxxxxxx > >> >>> "WE REPAIR WITH CARE" > >> >>> > >> >>> SERVICE CENTERS PLEASE READ!! > >> >>> 1. Are you currently backed up or over-loaded? > >> >>> 2. Are you short a tech or have one on vacation? > >> >>> 3. Do you need help with a very difficult repair? > >> >>> 4. Would you like to make money jobbing the work out? > >> >>> 5. Would you like to ship out less profitable products so you can > >repair > >> >>> others? > >> >>> If you answered Yes to any of the above questions, Checkout these > >> >>websites: > >> >>> http://www.electricmedic.com/salesa.htm > >> >>> or > >> >>> http://www.electricmedic.com/shipping.htm > >> >>> > >> >>> Factory Trained Authorized Service Center For: APEX, Fisher, GE, > >KEC/KTV, > >> >>> Konka, Mitsubishi, Panasonic, Philips Magnavox, Pioneer, ProSCAN, RCA, > >> >>> Samsung, Sanyo, Sharp, SONY, Technics, Toshiba, Zenith > >> >>> > >> >>> Provide Extended care for: AON, Circuit City, GE Contracts, Glass > >Agency, > >> >>> Philips Contracts, NEW, Rex > >> >>> > >> >>> > >> >>> -----Original Message----- > >> >>> From: techassist-bounce@xxxxxxxxxxxxx > >> >>> [mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of Larry E. > >> >>> Sent: Thursday, December 19, 2002 2:11 PM > >> >>> To: techassist@xxxxxxxxxxxxx > >> >>> Subject: [TechAssist] Re: 220v > >> >>> > >> >>> > >> >>> > >> >>> Tommy, their talking about European tv sets not North American > >> >>> Larry Eastman > >> >>> American TV & Electronics > >> >>> Crystal River, Fl. 34428 > >> >>> > >> >>> Hermantvr@xxxxxxxxxxxxx wrote: > >> >>> > >> >>> > Guys...I really don't know what you mean when you talk abut a TV > >using > >> >>> 220v. > >> >>> > On a 120v line you have a hot side and a neutral (0 volts) side. On > >a > >> >>240 > >> >>> > line you have two hot sides.....believe me it will let the smoke out > >of > >> >>> yur > >> >>> > power supply filters. > >> >>> > > >> >>> > Tommy Herman > >> >>> > Herman TV > >> >>> > 250 School Ave SW > >> >>> > Taylorsville N.C. 28681 > >> >>> > 828-632-5322 Voice > >> >>> > 828-632-3880 Fax > >> >>> > > >> >>> > If a TV requires 120 Watts of power, you could power it with 120V, 1 > >Amp > >> >>> > or 240V, 0.5A. > >> >>> > > >> >>> > > >> >>> > Gary McCartney > >> >>> > > >> >>> > McCartney Electronics > >> >>> > 7134 Fife Rd, RR 7 > >> >>> > Guelph Ontario Canada N1H 6J4 > >> >>> > Fax: (519)821-1530 > >> >>> > email: gary (at) number63.ca > >> >>> > > >> >>> > > >> >>> > > >> >>> > > >> >>> > gulftech@xxxxxxxx wrote: > >> >>> > > >> >>> >>Dear Villy, > >> >>> >> > >> >>> >>Most of us know that formula as P = IE. Since current is directly > >> >>> >>proportional to voltage ( I = E/R), an increase in voltage yields a > >> >>> >>corresponding increase in current with R held constant. If current > >and > >> >>> >>voltage are both doubled, power is increased by a factor of 4. > >> >>> >> > >> >>> >>If I'm wrong, please set me straight. > >> >>> >> > >> >>> >>Regards, > >> >>> >> > >> >>> >>Ken Smith > >> >>> >>Gulf Technical Services > >> >>> >>3034 Gulf Breeze Parkway > >> >>> >>Gulf Breeze, FL 32563 > >> >>> >>850-934-8324 (Voice) 850-932-0819 (Fax) > >> >>> >> > >> >>> >>On Thu, 19 Dec 2002 11:03:37 0000 "Vilhelm Boor" > ><villyboor@xxxxxxxxx> > >> >>> >>writes: > >> >>> >> > >> >>> >>>Villy boor > >> >>> >>> Boorelec Durban > >> >>> >>> When I read some of this I am rather surprised, where were some of > >> >>> >>>you trained, what happened to Ohms law? Why 2 round prongs. Most > >> >>> >>>countries use various combinations of flat pin at various angles, > >> >>> >>>Round pins tended to have a bakelite body. > >> >>> >>> But please remember W=IV so the greater V is the less I will be > >so > >> >>> >>>cables are lighter, plugs can be smaller and fuses lower I. Philips > >> >>> >>>for example make a wide range of TV with an input requirement of > >> >>> >>>from 90V to 270V, just plug it in and its working. I am sometimes > >> >>> >>>left speechless, this is your subject and livlihood, you must know > >> >>> >>>basics. > >> >>> >>>On Wed, 18 Dec 2002 19:43:29 > >> >>> >>> teltek2 wrote: > >> >>> >>> > >> >>> >>>>No...Their 220 does not requite a huge plug like your dryer..just > >2 > >> >>> >>>> > >> >>> >>>round > >> >>> >>> > >> >>> > > >> >>> > Tommy Herman > >> >>> > Herman TV > >> >>> > 250 School Ave SW > >> >>> > Taylorsville N.C. 28681 > >> >>> > 828-632-5322 Voice > >> >>> > 828-632-3880 Fax > >> >>> > hermantvr@xxxxxxxxxxxxx > >> >>> > ------------------------------------------ > >> >>> > Submit A Repair Tip For Everyone Here: > >> >>> > http://www.tech-assist.org/secure/tip/main.html > >> >>> > ------------------------------------------ > >> >>> > To REMOVE your email address, click here: > >> >>> > http://www.tech-assist.org/unsubb.html > >> >>> > To CHANGE your email address, click here: > >> >>> > http://www.techassist.net/forms/change.html > >> >>> > > >> >>> > > >> >>> > > >> >>> > >> >>> > >> >>> -- > >> >>> Larry Eastman > >> >>> American TV & Electronics > >> >>> Crystal River, Fl. > >> >>> http://www.tvjunkyard.com > >> >>> > >> >>> ------------------------------------------ > >> >>> Submit A Repair Tip For Everyone Here: > >> >>> http://www.tech-assist.org/secure/tip/main.html > >> >>> ------------------------------------------ > >> >>> To REMOVE your email address, click here: > >> >>> http://www.tech-assist.org/unsubb.html > >> >>> To CHANGE your email address, click here: > >> >>> http://www.techassist.net/forms/change.html > >> >>> > >> >>> ------------------------------------------ > >> >>> Submit A Repair Tip For Everyone Here: > >> >>> http://www.tech-assist.org/secure/tip/main.html > >> >>> ------------------------------------------ > >> >>> To REMOVE your email address, click here: > >> >>> http://www.tech-assist.org/unsubb.html > >> >>> To CHANGE your email address, click here: > >> >>> http://www.techassist.net/forms/change.html > >> >>> 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