[QUOTE=ke0me;14823]The apartment was built in the 1970's, so I will start seeing what they have for basic wiring./QUOTE]
Incidentally, many 70s-vintage buildings were wired with aluminum wires. These can become really RF-noisy when they corrode even invisibly; and the plug-in wiring tester may still say all is hunky-dory.
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-- Carl
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