Hi - it should be OK but the transformer might overheat a little if it is used intensively, so it need to be used carefully. The reason is that the magnetic flux in the core is 15-20% greater at 50 Hz, and that increases the heat produced in the transformer.
Going in reverse, a 50 Hz transformer will work fine on 60 Hz.
Supply Frequency in UAE is 50Hz
Your stereo system has an internal transformer in the power supply that is designed to operate at a given frequency. If it is designed to operate at the load your stereo system will use at 50 Hz, then yes. Otherwise this transformer will overheat when connected at the wrong frequency, and will burn out. You might be lucky and the power supply may be labelled to operate at 50 or 60Hz; if not, I recommend contacting the manufacturer. A voltage transformer will convert 50Hz 220 to 50Hz 110. To change frequency, you need special equipment.
Assuming that this question is about adapters for traveling to another country (not USA) then 230V is the equivalent of 220V. Just purchase a suitable adapter.
Not without spending a great deal of money. Appliances with motors and timers at 50 Hz would have to be changed out to 60 Hz components. Appliances that are strictly of a resistive nature will operate without any problem.
no
nothing
No
It is possible that the waffle maker will operate on a 220v 50hz power supply, but there is a risk that it may not function optimally or may overheat. It is recommended to check the manufacturer's specifications or contact them directly to confirm compatibility.
you can't
Yes, no problem.
220v 50Hz
Nothing happens. The stereo has a transformer that converts the power to DC, and 50 or 60 Hz input makes no difference.
There should be no problem at all.
220V , 50Hz
220V 50Hz
The compressor may run slightly faster, but little else. You should get away with it without damage. Any timer circuits may be inaccurate.
Yes no problem the transformer should run a little cooler as well.