lennartt

hey I forgot to say: Mine is working! I replaced the Opamps and the round transistor and it suddenly worked! thanks everyone!

thanks audioguru, but I noticed something REALLY BAD!!! When I bought my transformer (230 -> 2X 24V@2A) I asked the guy how to connect it, and i did it like he said... how stupid of me... the whole circuit got under a 48 Volts!!!! No strange things happened actually (no smoke, no "PLOOFF"). when I turn the device on now, the Led only burns when the current limiter potensiometer is turned completely to the right. you thing its still necessary to measure the IC's (which were always good connected and i have no components replaced (except the 200pF is 220pF))?

??? ??? Last week I discoverd this site and was really enthousiastic about building this power supply. But now, I tested it, and it seems to work half, because the Output Voltage is always zero and the Current Limitter LED is always on. Are there any tricks to see where it went wrong?? does somebody have a clear photo of its schematic, im afraid i connected the ICs in the wrong way (although they're connected like in the schematic, on the photo it seems to be connected otherwise then in the schematic) PLEASE, help me! greets from Holland ;)