Hi guys.
Stupid thing... I have a wallward transformer (the old kind, no switching PSU) for an inexpensive 1-in-4-out headphone amp that used to have 12VDC output. After I opened it on order to resolder the cable, it suddenly puts out 18VDC. This thing only has 4 diodes and an electrolytic cap! I testet the diodes and all are OK, switched the cap just in case. Any idea whats wrong with it?
Stupid thing... I have a wallward transformer (the old kind, no switching PSU) for an inexpensive 1-in-4-out headphone amp that used to have 12VDC output. After I opened it on order to resolder the cable, it suddenly puts out 18VDC. This thing only has 4 diodes and an electrolytic cap! I testet the diodes and all are OK, switched the cap just in case. Any idea whats wrong with it?
If it does not have any way to adjust voltage, it just may be that it puts out 18v unloaded and settles to 12v loaded.
Thank yal, guys. Turns out, I resoldered the cables at the wrong end. No wonder the LED on the box didn't turn on.