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  1. D

    Adding a Digital Multimeter LCD to XP-720

    Hi, I want to add to my power supply which is 0 - 20 V+/- @ 1 A and +5V @ 3A a LCD DMM.  I want to use a 9V battery due the load of the LCD will be independent of the circuit. So I made a search. I want to make the following circuit: It is capable of switch between each output and to measure...
  2. D

    Power Supply 0-30V

    I just wanted to turn on a laptop which use aprox. 19.5 V and 3.42 A. Then if 10 A is too high what if I want 5 A?
  3. D

    Power Supply 0-30V

    I want to know what I need to do if I want 0 - 10 A output instead of the 0 - 3 A.
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