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A question about AC adaptor/battery

S

Smoky McPot

Jan 1, 1970
0
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
 
J

John Popelish

Jan 1, 1970
0
Smoky said:
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.
 
S

Smoky McPot

Jan 1, 1970
0
Thanks for the reply! I'll post my result.
 
J

John Popelish

Jan 1, 1970
0
Smoky said:
Thanks for the reply! I'll post my result.

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