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Old 25th July 2005, 13:59   #214 (permalink)
Sam Kapasi
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Quote:
Originally Posted by Vivekphadnis
My head unit manual says it can take upto 14.2V DC. So, will a 12-0-12 transformer not be a little too much. It can be kept at 12V with a zener but you know, just to keep a safe margin. Should a 5A secondary winding be enough?
Even an unregulated 12-0-12 will give out about 14.5V under load, so it's better you use the 12-0-12.

5A is more than enough. Even 3A will do.
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