[BC] Christmas Trees stc.
Warren Shulz
warren.shulz at citcomm.com
Wed Feb 3 22:41:38 CST 2010
Dave,
It makes you wonder what the installer was thinking. The odd part is the installer was passing 120 vac into some low voltage mute door light relay.
Today we use SS relay and run 12 vdc for those line voltage switch actions. A lot more civil and lowers the smoke and fire risk. Good riddens to those days as we move to cat 5 and software defined consoles.
Warren Shulz
WLS Cgo
________________________________
on behalf of Dave Hultsman
In a message dated 2/3/2010 12:25:33 PM Central Standard Time, warren.shulz at citcomm.com writes:
>I had a experience with one of these Christmas tree's in the 70's where
>the installing engineer ran wiring from microphone level, line level,
>speaker level, and yes 110 volt door lights on the Christmas tree. It
>was a shocking experience to find the 110 vac unexpected as you laid a
>hand on the tree.
Warren, the old RCA BC-5B and BC-3B 5 and 8 pot consoles had the an air relays wired with 110 VAC on the same tree as all the audio, mike level, line level and speaker level. Same happened to me many years ago trying to hook up a remote line and I zapped my longnosed pliers across the 110 VAC.took the station off the air as a breaker tripped to the console.
Dave Hultsman
More information about the Broadcast
mailing list