Radio Free DC was created on 2008-10-21.
Free Radio - network - was created in 2012.
Radio Radio was created in 1977.
Companies are not invented. they are formed by their founders.
Radio Mirchi was created in 1993.
DC Youth Orchestra Program was created in 1960.
Free Radio Birmingham was created in 1974.
Radio Free Albemuth was created in 1985.
Free Radio - network - was created in 2012.
Radio Free Iraq was created in 1998.
Radio Free Sarawak was created on 2010-11-16.
Radio Free Roscoe was created on 2003-08-01.
Free Radio Santa Cruz was created in 1995.
Radio Free Europe - song - was created on 1983-07-08.
Free Radio San Diego was created on 2002-10-13.
Radio Free Albemuth - film - was created on 2010-02-25.
Radios use DC power supplies to operate. If a radio is powered from a mains AC supply, a power supply circuit will convert the AC supply to DC. Therefore, a radio may have both a DC and an AC power input but ultimately, the internal circuitry will always use DC.
AC - Alternating Current, same thing that comes out of a wall socket DC - Direct Current, batteries. <<>> When a device has AC/DC on its name plate, it can work off either of the two voltages. Many portable radios have this function. When the radio is plugged into AC, the voltage is transformed to the working DC voltage and then rectified to a DC voltage. When the radio is on battery operation, the radio operated strictly from the DC voltage supplied by the batteries. The change between voltages from AC to DC or DC to AC is almost instantaneously. This change over is done through an AC powered relay in the radio. When the AC held in relay looses its supply it de energizes and switches over to DC power if the batteries are in the radio. With batteries in the radio try it. Plug into the AC supply, turn on the radio that has batteries installed in it, unplug the AC supply and the radio will not miss a beat.