tonyf@mmintl.UUCP (Tony Faulise) (07/19/85)
Recently someone mentioned radio-stations mounting turntables in
sand-filled boxes. It's not to damp out turntable-generated
rumble but to prevent environment-caused rumble.
I worked as a techie in a college radio station and here's the
scoop :-) If you're listening to your radio at home, you do not want
to hear the lump-lump of footsteps because someone just walked through
the sound booth. So, we build a box of 3/4" particle board, hot-glue it
together, and fill it with 800lb. of sand ($64). then we mount the tt
on top. Preferably you cut a hole in your floor surface and let the
box sit on whatever peice of your building supports your floor.
I have seen heavy (260lb) people jump on the floor during a broadcast
to demonstrate this insulating technique, it works.
also:
Studio turntables come up to speed in about 5 degrees of rotation.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Tony ("the meek and jumbled") Faulise
allegra!princeton!yoyo!faulise
ihnp4!philabs!pwa-b!mmintl!tonyf (till aug. 25)