Hi, I recently ordered some lm338s from eBay, I had previously set up a lm317 circuit on my breadboard so I just replaced the lm317 with the lm338 but with a 22v input I can Only go down to 19v and the lm338 gets hot even with no load.
The lm317s worked perfect in this circuit, are these lm338s fake?
The lm317s worked perfect in this circuit, are these lm338s fake?