I made the trip up to Oak Ridge, TN today in hopes of recording this very rare Alertronic AL-7200 on Blair road at the East Tennessee Technology Park. While this siren unfortunately did not go off most likely because it is most likely part of a partly decommissioned on-site communication system, the AL-6000R sirens located around the plant sounded for the test with an announcement over the PA system on site. Multiple 6000Rs can be heard in the video along with (sadly) lots of road noise since there is no better place to set up at this particular siren. A windup, alert tone, and wind down can be heard distinctly throughout the video. I cannot wait to record one of the 6000Rs next time I make the venture up to Oak Ridge and in the mean time, stay tuned for more tests form today. Here is the video:
https://www.youtube.com/watch?v=CT4tW2oagaw