ECN Forum Forums General Topics of the Trade General Discussion Area 120VAC to 12VDC

Triple I understand the car battery size thing, try thinking more like a motocycle or alarm battery. Something small, it doesn't have to be a car battery.

What ever you do, consider you really want 13,6 volt dc since you are going to use it for a car radio. A 12 volt PC supply could leave you short a few watts of audio, like 25% short. E^2/R

[This message has been edited by dereckbc (edited 12-16-2005).]

If you decide to use an ATX power supply here is a link that may be useful for you.
It is the pinout of an ATX supply.
http://xtronics.com/reference/atx_pinout.htm