I'm a noob that is just getting started.
I'm using an LM317T to generate 6V but I need a little more amperage. Can I just double my LM317T and resistors configuration and put them in parallel?
simulate this circuit – Schematic created using CircuitLab
Ignore the resistor.
Answer
TI's datasheet shows to ways to increase the current output of a 317. The first one is basically what you're suggesting:
Notice the 0.2 Ohm resistors at each output. These allow for differences in the reference voltage between the 317 chips.
The second one uses external transistors instead of paralleling 317's:
This concept can also be done with a single external transistor as shown here:
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