Thanks for the reply. I’m currently using a Gator pedalboard with the G-BUS8-US power supply. It has 8 9V connections and 3 18V ones. It has a 1500 milliamp power supply.
I am currently running a Boss TU-2, CS-3, a TS9DX, and a Danelectro Corned Beef Reverb. I replaced the Dano reverb with the HG and got the high-pitched whine.
Hope that’s enough info.
Thanks!
I live in the US, about 2 miles from Guitar Center.
Are you saying this is the only solution?
I just bought a used Holy Grail. Love the sound, BUT… I was not aware of the electrical issues. It did not come with the EHX wall-wart, but the buyer included the 3.5mm adapter. I plugged it into my Gator pedal board and was greeted with that high-pitched whine, whether the pedal was on or off.
Is the only solution to get the EHX wall wart? If so, where are they sold?
TIA,
Bob