A question about AC adaptor/battery

S

Smoky McPot

Guest
I have a set of PC speakers that have an AC adaptor for power. It is
9vAC @ 1000ma. I know little about electronics, but I would like to be
able to make these speakers battery powered, even if only for a couple
of hours. What batteries/parts should I look for to put this together?
Thanks in advance
 
Smoky McPot wrote:
I have a set of PC speakers that have an AC adaptor for power. It is
9vAC @ 1000ma. I know little about electronics, but I would like to be
able to make these speakers battery powered, even if only for a couple
of hours. What batteries/parts should I look for to put this together?
Thanks in advance
Click to expand...
Go to Radio Shack and buy a battery holder that holds 6 AA cells and a
power plug similar to the one on the adapter. Then wire the plug to
the battery holder so it puts out the same polarity. You may want to
buy a cheap volt meter at the same time to verify this. 6 alkaline
cells in series produce 9 volts.

--
John Popelish
 
Thanks for the reply! I'll post my result.

On Sun, 14 Sep 2003 03:48:57 GMT, John Popelish <jpopelish@rica.net>
wrote:

Smoky McPot wrote:

I have a set of PC speakers that have an AC adaptor for power. It is
9vAC @ 1000ma. I know little about electronics, but I would like to be
able to make these speakers battery powered, even if only for a couple
of hours. What batteries/parts should I look for to put this together?
Thanks in advance

Go to Radio Shack and buy a battery holder that holds 6 AA cells and a
power plug similar to the one on the adapter. Then wire the plug to
the battery holder so it puts out the same polarity. You may want to
buy a cheap volt meter at the same time to verify this. 6 alkaline
cells in series produce 9 volts.
Click to expand...
 
Smoky McPot wrote:
Thanks for the reply! I'll post my result.

On Sun, 14 Sep 2003 03:48:57 GMT, John Popelish <jpopelish@rica.net
wrote:

Smoky McPot wrote:

I have a set of PC speakers that have an AC adaptor for power. It is
9vAC @ 1000ma. I know little about electronics, but I would like to be
able to make these speakers battery powered, even if only for a couple
of hours. What batteries/parts should I look for to put this together?
Thanks in advance

Go to Radio Shack and buy a battery holder that holds 6 AA cells and a
power plug similar to the one on the adapter. Then wire the plug to
the battery holder so it puts out the same polarity. You may want to
buy a cheap volt meter at the same time to verify this. 6 alkaline
cells in series produce 9 volts.
Click to expand...
I just noticed you said 9 volts *AC*. You won't have to worry about
the polarity, because the speakers must have rectifiers inside.
--
John Popelish
 
Thanks John. This worked perfectly!

On Sun, 14 Sep 2003 04:11:42 GMT, John Popelish <jpopelish@rica.net>
wrote:

Smoky McPot wrote:

Thanks for the reply! I'll post my result.

On Sun, 14 Sep 2003 03:48:57 GMT, John Popelish <jpopelish@rica.net
wrote:

Smoky McPot wrote:

I have a set of PC speakers that have an AC adaptor for power. It is
9vAC @ 1000ma. I know little about electronics, but I would like to be
able to make these speakers battery powered, even if only for a couple
of hours. What batteries/parts should I look for to put this together?
Thanks in advance

Go to Radio Shack and buy a battery holder that holds 6 AA cells and a
power plug similar to the one on the adapter. Then wire the plug to
the battery holder so it puts out the same polarity. You may want to
buy a cheap volt meter at the same time to verify this. 6 alkaline
cells in series produce 9 volts.

I just noticed you said 9 volts *AC*. You won't have to worry about
the polarity, because the speakers must have rectifiers inside.
Click to expand...
 
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