Hello -
I have a guitar effects pedal that requires a 9VDC 300mA power supply. I have several AC adaptors I kept from other devices, but none are exactly those numbers.
I have for instance, a 13VDC 300mA AC adaptor from HP (I assume it was for a laptop). The mA are correct but the voltage isn't. From what I have found out so far, the voltage must be correct or it will damage the pedal. Apparently I could use an adaptor that had a higher mA value (500mA vs 300mA), but not a lower value, and as long as the voltage was correct it would work OK. Am I correct so far?
If so, then my question is how could I reduce the adaptor I have to 9VDC?
Thanks!
I have a guitar effects pedal that requires a 9VDC 300mA power supply. I have several AC adaptors I kept from other devices, but none are exactly those numbers.
I have for instance, a 13VDC 300mA AC adaptor from HP (I assume it was for a laptop). The mA are correct but the voltage isn't. From what I have found out so far, the voltage must be correct or it will damage the pedal. Apparently I could use an adaptor that had a higher mA value (500mA vs 300mA), but not a lower value, and as long as the voltage was correct it would work OK. Am I correct so far?
If so, then my question is how could I reduce the adaptor I have to 9VDC?
Thanks!