Newbie: Simple amplifier and voltage to current converter

From: harrysel@xxxxxxxxx
Date: Thu, 13 Dec 2007 05:26:27 -0800 (PST)

Hi everybody

I new to electronics and I need your help. I am experimenting with a
microcontroler and I want a 0-5V output to make it 0-10Volt....can
you tell me where I can find a simple circuit to implement?

Another option is to covert the 0-5V to4-20mA. Can I do it in a
simple way?

Thank you

Harry
.

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