Back when we were teenagers in the late 1970s there was a single tower in Kennedale, would have been North of I-20, obviously decommissioned, a slab were a power box used to be, no fence, tall Johnson grass, already some homes being built nearby. We climbed up about halfway.. Been gone at least 25 years now. We assumed that might have been 1540's old tower...didn't they just have one tower with 50kW-daytime and 1kW-night early on? All we had was an outdated White's Radio Log someone gave one of us.
1540's towers were south of I-20, right along Hwy 287 (not the old Mansfield Hwy). What started as a single tower became two, and then seven - all at the same site. The seven tower array was built in 1961 and removed in the late 80s as development encroached. The land where the towers once stood is now the site of Treepoint Park.
There was/is a single tower north of I-20, just off Lindberg Road. That tower served as the transmitter site for 99.5/KXOL-FM from 1969 until Susquehanna bought the station and moved it to Cedar Hill as KPLX in 1976.