Hey folks! Just read this thread because i have a similar problem with the mf Modul! Just could get about 0,5 V out of it. I have two mf boards, none works. To specify the error, i measured some values. The Voltage reference(lm 317) which should be 1,5, is only 0,45 V. (the same on the second mf board) Measure results: Ground - Input lm 317 = 10,8 V (a little bit less, i tried another power supply with 13,5 V = the same results) Potentiometer 0 Ohm: Input - output lm 317 = 0,45 V Input - adjust lm 317 = 0,25 V Potentiometer 1 kohm:Input - output lm 317 = 0,45 V Input - adjust lm 317 = 0,45 V I didnt try other values at r1, because it must be significantly higher than it is. It dont minds whether position the potentiometer stands, its alway 0,45V output at c4. I really cant believe that all two of the lm317 are gone into the nirwana. I will try a new lm317 on a printboard. But its a really strange behaviour. Hopefully someone could help me out with some tips, or exprenciences from someone who had a similar prob and solved it! thx in advance Schoko