Modem Amperage selection

[johngood_____]

My broadband modem transformer has stopped working. My son has a small
mains transformer with 'variable voltage' output choice (i.e. 3v, 6v, 12v
etc) which I intend to use.

Written on the tranformer is a chart with two lots of readings against each
choice of voltage output. So against the 12 volt output (which is what I
need) it says : '6V amps' and also it says '500 Milliamps'. The 500
milliamps I'm assuming is the maximum amperage it will deliver, but what is
the meaning of 6V amps please? Thanks for any advice.

 

[Curt Christianson]

6 volt-amps is *similar* to 6 watts, but it's stated as volt-amps because
there are impedance issues to take into consideration. In this instance you
can/could consider it the same as ~6 watts. You had mentioned it said 12
volts @ 500 ma. If you do the math, 12 volts x 500 ma. (1/2 amp.)= 6 watts.

--
HTH,
Curt

Windows Support Center
www.aumha.org
Practically Nerded,...
http://dundats.mvps.org/Index.htm

| My broadband modem transformer has stopped working. My son has a small
| mains transformer with 'variable voltage' output choice (i.e. 3v, 6v, 12v
| etc) which I intend to use.
|
| Written on the tranformer is a chart with two lots of readings against
each
| choice of voltage output. So against the 12 volt output (which is what I
| need) it says : '6V amps' and also it says '500 Milliamps'. The 500
| milliamps I'm assuming is the maximum amperage it will deliver, but what
is
| the meaning of 6V amps please? Thanks for any advice.
|
|

 

[Curt Christianson]

6 volt-amps is *similar* to 6 watts, but it's stated as volt-amps because
there are impedance issues to take into consideration. In this instance you
can/could consider it the same as ~6 watts. You had mentioned it said 12
volts @ 500 ma. If you do the math, 12 volts x 500 ma. (1/2 amp.)= 6 watts.

--
HTH,
Curt

Windows Support Center
www.aumha.org
Practically Nerded,...
http://dundats.mvps.org/Index.htm

| My broadband modem transformer has stopped working. My son has a small
| mains transformer with 'variable voltage' output choice (i.e. 3v, 6v, 12v
| etc) which I intend to use.
|
| Written on the tranformer is a chart with two lots of readings against
each
| choice of voltage output. So against the 12 volt output (which is what I
| need) it says : '6V amps' and also it says '500 Milliamps'. The 500
| milliamps I'm assuming is the maximum amperage it will deliver, but what
is
| the meaning of 6V amps please? Thanks for any advice.
|
|

 

[Curt Christianson]

Volt-amps:

http://en.wikipedia.org/wiki/Volt-ampere

--
HTH,
Curt

Windows Support Center
www.aumha.org
Practically Nerded,...
http://dundats.mvps.org/Index.htm

| My broadband modem transformer has stopped working. My son has a small
| mains transformer with 'variable voltage' output choice (i.e. 3v, 6v, 12v
| etc) which I intend to use.
|
| Written on the tranformer is a chart with two lots of readings against
each
| choice of voltage output. So against the 12 volt output (which is what I
| need) it says : '6V amps' and also it says '500 Milliamps'. The 500
| milliamps I'm assuming is the maximum amperage it will deliver, but what
is
| the meaning of 6V amps please? Thanks for any advice.
|
|