Weber Unika Interior Views |
 The late style box pump in the bottom of the Weber Unika produces both vacuum and wind-pressure. The wind-pressure blows the pipes and operates the primary portion of the main valve stack, with all other player mechanisms vacuum operated. |
The electrical control system consist of the start-stop switch mechanism located in the center of the photograph, which still uses the two original ceramic liquid mercury pots for electrical contacts. A locking armature keeps the contact wires up and out of the mercury pots, but can be released by a small electro-magnet (either by a small electric button on the music roll frame or by a remote wall-box) allowing the contact wires to drop down into the mercury pots. The small motor pneumatic above the contact mechanism lifts the contact wire from the mercury pots to turn off the instrument. |
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