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What site are you talking about? If you mean the instructables site then I have not found a solution here yet.
Do these work with AC or just DC? Thanks
Here is what I need. I am trying to produce a supply that has a variable output of AC from 0 volts all the way up to 120. I would like to wire in a digital display that would actually give what the output of the terminals would be at each stage. For instance, if the POT was turned to say the middle while the input was always 125vac and then watch the output voltage on the digital display until it reaches the voltage I need at the time. I need the full spectrum of 0v to 125vac in because I will be using this as a testing platform for different things. Is there any way to do this cheaply? Thanks. I have not found anything on line that would do this. So I would appreciate your help.