[TechAssist] Re: 220v
- From: "J Silverman" <greentron@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 21 Dec 2002 14:00:44 -0500
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
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> >> >>>
> >> >>>
> >> >>> -----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
> >> >>> > ------------------------------------------
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> >> >>> >
> >> >>> >
> >> >>> >
> >> >>>
> >> >>>
> >> >>> --
> >> >>> Larry Eastman
> >> >>> American TV & Electronics
> >> >>> Crystal River, Fl.
> >> >>> http://www.tvjunkyard.com
> >> >>>
> >> >>> ------------------------------------------
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