1. In the traditional electrical sense, a circuit is any complete system involving the flow of electrons from point
A to point B. In the lighting world, a circuit generally refers to a particular type of circuit described below.
A circuit is a numbered cable that carries power
to a numbered outlet
where you plug
instruments in. In a dimmer
per circuit system, each dimmer has its own designated circuit line
, thus dimmer numbers and circuit numbers are identical. In non-dimmer per circuit systems, there is a patch panel
which assigns circuits to dimmers.
Remember, the number relationship between circuits, dimmers and channels may or may not be fixed. Channel
#4 on the light console
can turn on dimmer #4 and send
power to circuit #4. OR channel #4 can turn on dimmer #29 and send power to circuit #87. It all depends on how things are patched in the system.
2. The complete path that electricity follows, from source through switches and load [often incandescent lamp(s)] and other devices back to source.
3. During the early 1900s days of vaudeville
, acts were pre-booked to tour among all of one owner's theatres in various cities. In Gypsy
, Mama Rose's goal is to get her girls' act onto the Orpheum Circuit
, the largest and most prestigious at the time.