I'm not an electronics person but I need to power up a device that requires 12v using 9volt battery or even two 9v batteries to start with 18v. I need to put together something very small and was looking at lm317
12v-----[lm317]---|
| | 1.6 2w Resistor
| |_____|
|
Does that sound about right?
12v-----[lm317]---|
| | 1.6 2w Resistor
| |_____|
|
Does that sound about right?