I've got a Collins KMW-2 that used to be my grandpa's. It was supposedly considered a mobile rig. I have an AC power supply with it but I've been looking for a DC one so I can use it after a blackout. They don't seem to be that pricy. Does anybody have any educated opinions on how these old all-tube rigs would fare in the event of an EMP assuming the rig was unplugged from antenna and power?