My phone at home needs 3 x1.5 Volt batteries to work.Cause they get out of juice every two weeks, i decided to use the 9V adaptor.Although the adaptor says its Voltage is 9 ,the multimer says 15.Propably cause here in greece we have 220 AC
60hz and that was made for america.So i used some resistors and achieved to reduce the voltage at 4.49 using 2 resistors and a variable one.
My phone works perfectly now,but i could have used many different combinations and different total resistance.
The question is
ok about the voltage but the current?how could i know how much current is desired?
60hz and that was made for america.So i used some resistors and achieved to reduce the voltage at 4.49 using 2 resistors and a variable one.
My phone works perfectly now,but i could have used many different combinations and different total resistance.
The question is
ok about the voltage but the current?how could i know how much current is desired?