| 摘要 |
The present system is a capture action system for electronically recording stop tab configurations in an electric organ, and for recalling the stop tab configurations at will, by depressing of a single control piston for each desired configuration of stop tabs. The system includes provision for setting and recalling combinations of stop tabs associated with a single division of the organ, for example, the swell manual, but not affecting tabs in other divisions, and also includes provision for recording and recalling combinations of all tabs on the organ (general stop) without regard to division. The system further includes a divisional or general cancel function, for operated tab switches, resetting these to inoperative position, and reversible stop functions in which a control piston when actuated reverses the position of its associated stop tab, the reversible stops retaining their abilities to function within the divisional and general combinations. The system is capable of accommodating a maximum of 128 stop tabs, divided into five divisions of the organ, each of which may contain any desired fraction of the total number of stops of the organ, provided that the divisional stops are each allocated to only one division. In operation, tabs which are desired to be operable in combinations are actuated and a set piston and a recall piston are then operated, which stores the locations of the actuated pistons in a memory consisting of 23 channels. One of these channels is required for each general piston and one channel is required for one piston in each division. General and divisional cancel functions require no memory. The reversible stop function uses a temporary memory which is not the same as the memory used for combination stop. The present system is capable of cycling in .27 seconds and within .067 seconds of the start of this cycle all stop tabs have initiated motion.
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