Such services need not take place in a synagogue; they merely require a quorum ('minyan') of at least ten men over 13 years of age (in Orthodoxy-ten men or women in Progressive Judaism) to gather for morning, afternoon and evening prayers.uch services need not take place in a synagogue; they merely require a quorum ('minyan') of at least ten men over 13 years of age (in Orthodoxy-ten men or women in Progressive Judaism) to gather for morning, afternoon and evening prayers.
A repeater is an electronic device in a communication channel that increases the power of a signal and retransmits it, allowing it to travel further. Since it amplifies the signal, it requires a source of electric power.
A transformer is a device that changes (transforms) and alternating potential difference (voltage) from one value to another value be it smaller or greater using the principle of electromagnetic induction. A transformer consists of a soft iron coil with two coils wound around it which are not connected to one another. These coils can be wound either on separate limbs of the iron core or be arranged on top of each other. The coil to which the alternating voltage is supplied is called the primary coil or primary winding.