calvingloster:
I have set up a LM317 to output 13.7v. From the output to adjust I have used a 5ohm resistor and then my R2 which is from the R1 to ground I have used a 50ohm resistor. When I put a 16v power supply on the 50ohm resistor gets smoking hot!!! Like I can even smell it! Why is this?
Read this post: Seeking for explanations regarding LM317 - #5 by krupski - General Electronics - Arduino Forum
(the LM-317 data sheet may be a help too......) 