The WS62 is self contained in that it has a built in power supply. All it needs is 12 VDC to operate. Having said that I wouldn't power it up without having it checked over first by a radio technician. There are components that age and could fail and cause damage to the set.
If you don't connect a mic or key it shouldn't transmit but check with your radio regs about owning a set. Maybe one of the VK members can elaborate.
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