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  1. S

    atmega8 volt/amp meter

    Did you set the correct fuse settings before uploading the code ??? It is assumed here, that
  2. S

    0-30V Stabilized Power Supply

    Hi all, here is a rendering of the board im going to be making. It is a similar in design to the original....
  3. S

    0-30V Stabilized Power Supply

    I cant really comment on the op amp substitution or the resistor question but i would not use a wire in place of the resistor. I think on the new board you should use some IC sockets
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    0-30V Stabilized Power Supply

    looking at the picture with everything on it, it seems the wiring to and from the bridge rectifier is all wrong there should only be 4 wires in total on it  2 in and 2 out, you also have 4 wires at the input part of the board where there should only be 2
  5. S

    0-30V Stabilized Power Supply

    Mate you need to double check all the components on the board i have found 2 that are the wrong value R1 and R22
  6. S

    0-30V Stabilized Power Supply

    Hi all, it looks like the voltage and current pots are connected up wrong, I could be wrong but isnt the wiper part of the pot the middle terminal ?? in your pic its connected to one of the outside terminals which has wiper marked on the board
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    Home made pcb etchant?

    mate do a search for sodium persulphate its much safer than ferric chloride but there is a downside to it thou, once it is mixed up it only lasts for a few weeks if that. I prefer the ferric chloride as it lasts months
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