I'm sure that with voltage doubling circuitry, some amount of line voltage might be making something like this happen. I know that Viking offers their PS48RG power supply that takes a 12VAC input and outputs 96VAC ringing and 48VDC talk battery. With that said, Viking is no stranger to using this type of circuitry. I'm still at a loss as to how, but I agree that a call to their technical support people might be in order. If nothing else, I'm sure they'd like to know this.


Ed Vaughn, MBSWWYPBX