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Universal Voltage support for Panasonic Cordless phones

C

consumer

Jan 1, 1970
0
Hi,

I recently bought Panasonic KX-TG5776 cordless phone, I want to take
this to India where voltage is 220V. Can someone know would it work
there, or should I return it. In case I need to buy any additional
thing to make it work then pls lemme know that too

Thanks
 
H

Homer J Simpson

Jan 1, 1970
0
I recently bought Panasonic KX-TG5776 cordless phone, I want to take
this to India where voltage is 220V. Can someone know would it work
there, or should I return it. In case I need to buy any additional
thing to make it work then pls lemme know that too

India is 230 V 50 Hz. You need a 230 to 115 V transformer. Make sure it is
50 cycle rated. I got mine at Rite Aid.

You may need adaptors for their phone sockets. See
http://www.kropla.com/phones2.htm for more.
 
M

Morse

Jan 1, 1970
0
consumer said:
Hi,

I recently bought Panasonic KX-TG5776 cordless phone, I want to take
this to India where voltage is 220V. Can someone know would it work
there, or should I return it. In case I need to buy any additional
thing to make it work then pls lemme know that too

Thanks

You don't say where in the world you are now?!

If you live in one of the majority of the regions of the world where the
mains voltage is 220-240V, (Europe, Africa, Australasia, most of Asia etc)
the phone will be fine, nothing needs to be done as far as the mains supply
is concerned.

If you live in a region which uses 110-120V (North America for example) or
somewhere like Japan (two different voltages depending on region) then
you'll need a step down transformer to use it on 220-240V.

It's possible the phone can be modified to run on a different voltage,
(rewire dual primary transformer if used) but an electronics engineer would
need to take a look at it to verify this if it doesn't have a voltage
selector switch.

Morse
 
C

consumer

Jan 1, 1970
0
I am currently in US and want to take it to India and wanna know if it
would be as simple as taking a step down adapter ?
 
T

trillium

Jan 1, 1970
0
Sure, step down is fine; but that's a little expensive, like maybe
$20-$30; and don't get the Radio Shack one, it's unreliable in my
humble experience.

May be cheaper to get another brick, that runs already off 220VAC and
has about the same voltage (i.e. +- 30%); doesn't ned to be exact, the
phone expects unregulated power; you may have one from other stuff, I
have a box of 'em... Make sure the polarity of the plug is the same
though.

If you want to get cute, open up the brick and verify there's nothing
more than a full wave rectifier (besides the transformer and maybe a
capacitor); if yes, turn it into a half wave rectifier and you can
power it from 220AC. You still need some gizmo so you can physically
plug it in. There's a small chance the primary is designed so much to
the limit it may overheat, but that's very unlikely; most times the
wire there is at least twice as big as it needs to.
 
H

Homer J Simpson

Jan 1, 1970
0
I am currently in US and want to take it to India and wanna know if it
would be as simple as taking a step down adapter ?

Yes.
 
G

Geoffrey S. Mendelson

Jan 1, 1970
0
consumer said:
Hi,

I recently bought Panasonic KX-TG5776 cordless phone, I want to take
this to India where voltage is 220V. Can someone know would it work
there, or should I return it. In case I need to buy any additional
thing to make it work then pls lemme know that too

It's probably illegal in India because it operates on the 5,8gHz band.
Check before you waste your time and money and get into trouble in customs,

What you really want is a 1.8gHz DECT phone. 2.4 gHz DCT phones sold in the
U.S. should be ok, but if you or your neighbors have a wireless network,
they may interfere with each other. Make sure it is marked that it won't.

Geoff.
 
M

Morse

Jan 1, 1970
0
trillium said:
If you want to get cute, open up the brick and verify there's nothing
more than a full wave rectifier (besides the transformer and maybe a
capacitor); if yes, turn it into a half wave rectifier and you can
power it from 220AC.

Erm, no you can't. The type of rectifier is irrelevent, if you connect a
transformer with a 110V primary to a 220V supply it will be toast in
seconds. It probably won't even get a chance to damage the phone before the
primary blows open circuit.

The advice concerning the rectifier is also bogus- apart from anything else
the smoothing cap would need to be uprated as it would be smoothing half
wave rectified DC.
You still need some gizmo so you can physically
plug it in. There's a small chance the primary is designed so much to
the limit it may overheat, but that's very unlikely; most times the
wire there is at least twice as big as it needs to.

Is this a wind up? It is virtually guaranteed to destroy the transformer!
You are perhaps thinking of 50Hz/60Hz mains frequency differences which some
transformers will handle OK. This is certainly not true where a 100%
increase in mains voltage is concerned- the transformer will melt or go pop,
simple as that.

Morse
 
M

Morse

Jan 1, 1970
0
consumer said:
I am currently in US and want to take it to India and wanna know if it
would be as simple as taking a step down adapter ?

Yes, get a step down adapter.

However, to avoid breaking Indian telecommunications laws, check it is legal
to use there beforehand.

You might be better off selling it or giving it to a friend and buying a new
one in India.

Morse
 
B

Bennett Price

Jan 1, 1970
0
Geoffrey said:
It's probably illegal in India because it operates on the 5,8gHz band.
Check before you waste your time and money and get into trouble in customs,

What you really want is a 1.8gHz DECT phone. 2.4 gHz DCT phones sold in the
U.S. should be ok, but if you or your neighbors have a wireless network,
they may interfere with each other. Make sure it is marked that it won't.

Geoff.
Does a plain old (wired) US pulse/tone phone work anywhere in the world?
Do all phone systems use the same on-hook ring voltage/frequency and
off-hook voltage?
 
H

Homer J Simpson

Jan 1, 1970
0
Does a plain old (wired) US pulse/tone phone work anywhere in the world?

No. Tone is OK, but other countries use different pulse sequences. You'd
need to glue new numbers on for pulse dialing.
Do all phone systems use the same on-hook ring voltage/frequency and
off-hook voltage?

Pretty much. I'm unaware of any differences
 
J

JANA

Jan 1, 1970
0
You will need a 220 Volt to 120 Volt 50 Hz transformer. Before going the
trouble and the expense to get a transformer, make sure that the phone is
compatible to the phone system in India.

--

JANA
_____


Hi,

I recently bought Panasonic KX-TG5776 cordless phone, I want to take
this to India where voltage is 220V. Can someone know would it work
there, or should I return it. In case I need to buy any additional
thing to make it work then pls lemme know that too

Thanks
 
G

Geoffrey S. Mendelson

Jan 1, 1970
0
Bennett said:
Does a plain old (wired) US pulse/tone phone work anywhere in the world?
Do all phone systems use the same on-hook ring voltage/frequency and
off-hook voltage?

No. Some countries no longer support pulse dialing, for example, Israel.

Most countries use a two wire system, the UK uses a three wire (seperate
ring) system. Ironicly, many of the newer UK instalations are two wire
to the home, and then split off into a three wire system where they enter
the home.

AFAIK, a two wire tone telephone will make outgoing calls in the UK,
with the correct wiring. It is not the same as the U.S. Israel uses
the same plug as the UK, but with a two wire system wired like the U.S.

Touch tones are a world standard.


Plugs vary around the world at the wall side. The phone side is the same
everywhere. Usually you can buy an adaptor or code locally.

Geoff.
 
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