sidearm

A piece of lighting hardware from the "iron" category, most often used when hanging a conventional lighting fixture from a vertical boom. In its most basic form, consists of three parts:
a lighting C-Clamp with the spud removed,
a 12"-18" long, 1/2" I.D. pipe.
and a sliding Tee fitting.


A couple of abbrev.s:
STSA=Single Tee Side Arm
DTSA=Double Tee Side Arm

City Theatrical has a line deemed Safer Sidearms.


The Light Source has two alternatives:

http://www.thelightsource.com/products/14/view


http://www.thelightsource.com/products/31/view

Any 90° pipe connector (Rota-Lock, Kee Klamp, fixed Cheeseborough, etc.) and a short length of pipe (12-36") may be used to create a sidearm.

Noun or verb.

See also pipe stiffener.