Trigger and Envelope Voltages
The Trigger and Envelope Voltage Panel is a signal routing module for triggers coming from one or two controllers. Lighted switches labelled "from 1" or "from 2" at the top of the panel connect the controller trigger outputs (when lighted) to the 911A Dual Trigger Delay. The lower three left hand column switches route the trigger signal as follows: top switch - to left 911 with no delay, center switch - to center 911 with delay set by top 911A delay unit (if any), bottom switch - to the right 911with delay set by the bottom 911A (if any). The right hand green switches connect the DC control voltages from the 911's to their respective 902 Voltage Controlled Amplifiers: Left to left, center to center, right to right. Any of these routes may be connected at the same time.
Is not in the official price list and used for systems only.