The Thunderbolt 1003 in Burwell has been seemingly replaced with a 2001-130. My contact there at the city says the Thunderbolt is being refurbished, potentially to be relocated elsewhere in town or to be put on display(?).
Also, from the same contact at the city, the Model 5 has been replaced with the Model 7 that I had donated in 2020 (lack of space and it had to go). The city maintenance manager says he swapped the shrouds over and I have visually verified that it's my old siren up on the tower now. So that's kinda neat. Evidently the Model 5 seized up during one of it's 5, yes five, daily blasts.