Hi Audioguru, I really appreciate the help you try to give me. Well I checked the pots and they give 5.4k when they are at the middle. My transformer is 24v 5A.So I think that i can have 3A and more regulation. When i regulate voltages works perfect from 0 to 30V. However when i regulate the current It doesn't go more than 0.08A no matters where i put the pot of the volatges.One more thing is that when i put the current pot to one end then the voltages drop to -0.06, the led lights then, and the current is zero.When i turn a little the current just to show me 0.01A or 0.02A then the led turn off and the voltages work normal. One more thing that i tried is that i changed the current 10k linear pot with a 100k pot not linear and i managed to regulate the current from 0 to almost 1A.But this is also no right.The led turns on ONLY when i regulate the current to zero and the voltages drop to -0.06 only then. I don't have much experience at electronics and i really can't figure out why this happens.I have checked my project with the original schematic thousand of times and i can't find any mistake.I also bought some new tlo81 and changed them but the same problem persist!
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