I have an AT&T cordless phone that has a main base and a separate charging cradle for a remote handset. The main base uses a 6vdc wall adapter at 300mA but the small cradle uses a 6vac adapter at 300mA. Why would they do that and not use a dc adapter? My issue is the adapter has gone bad. The transformer's primary winding went out and I don't have another. I tested the main base contacts and they have about 6.5v out. I want to achieve this on the other base. I suppose it would be ok to use a linear regulator to get the required voltage but I am unsure if that would harm the phone. The small circuit board inside the cradle consists of a few components such as the socket for the transformer, an 8550D pnp transistor, 470mfd cap, some 1N4001 rectifiers, and a very small transistor which I can't make out the part no. but it looks like it says A7X which I'm not sure of.
I guess what I want to know is, does it matter that the charging voltage comes from this circuit board or a simple linear regulator?
I guess what I want to know is, does it matter that the charging voltage comes from this circuit board or a simple linear regulator?