<VV> Voltage reducer / 2nd answer! ggg

[JVHRoberts at aol.com]

The voltage needs to be regulated. A resistor alone won't do it reliably  and 
safely, since the load is no doubt NOT constant! 
 
 
In a message dated 2/15/2006 1:30:04 P.M. Eastern Standard Time,  
UltraMonzaWest at aol.com writes:

> I  have several sets of computer speakers.  One that has a 9volt power  
> supply.  I want to cobble together a power plug to connect into  the fuse 
> panel, and provide 9 volt power for the speakers.
>  
>  
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Man  those are old!  ggg  I'd forgotten about those....ggg

Get  a   50 ohm  50 watt  variable resistor.......turn it to  FULL  
resistance 
[ 50 ohms]

Slowly turn it down until you see  9 vdc with speakers working...