[sdiy] [AH] Want to build an AC power supply

[dragons]

Hi,
I guess if you were to use a transformer with several different ac 
windings that were Isolated from each other then there would be 
sufficient Isolation between the pedals.
Otherwise I think there could be problems.

regards Peter B



On 16/01/13 08:49, Florian Anwander wrote:
> Am 14.01.2013 22:43, schrieb Logan Mitchell Sr:
>> I want to build an AC power supply to work with some effects pedals that
>> use 9 volts AC,
> Is this really a good idea?
>
> Some of those pedals may build internally symmetric DC supply voltages.
> Others may create a single DC supply voltage. In the first case the
> ground is at 4,5 V AC in the second case at 0V AC (ok not really true,
> but I don't find the right words to describe it). Connecting those two
> devices with a unsymmetric audio line would not be a good idea.
>
> Or am I misunderstanding something completely?
>
> Florian