Kturnerga,
Funny you mentioned Mutual's sounder (kind of a harsh, synthesized sound IIRC) being frightening to a kid. I remember the same feeling hearing the newscasts on WULA in Eufaula, AL. Right about the time I started working there, as a teen, we got a satellite dish to receive the Mutual feed from the Westar 4 satellite. It was about that time that they changed their opener to use more of a "tympani/symphonic" sound... so I wasn't quite as shell-shocked when I backtimed into the newscasts at the top of the hour.
That's just one of the sounds that floods my memory. The old-style AP machine right outside the control room (I despised the dot-matrix printer the AP replaced it with about 2 years after I started working there); the sound of the FM's automation reels rewinding when you were changing tapes; oh, and speaking of networks, we still had Alanet news from Montgomery brought in by EQ'd line to run at the bottom of the hour. They had a closed-circuit countdown that ran 1 minute before each newscast. Standard thing, really, tones at 1 min, 45 sec, 30 sec, 15 sec, and short bursts for 10-9-8-7-6-5. Only thing was, whoever carted up this countdown at the network was not well schooled in the art of bulk-erasing a cart, so you got the "whoosh, whoosh" sound of an improperly erased cartridge about every second or so. Top quality stuff for a statewide network of about 50-60 stations.
I'm with JackieSteele, I'm too young to be this old!
TDO