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and bidirectional synchro systems. Wide and dual-grid servo/riter*II models give a choice of one to five full overlapping channels on a 8.75" grid. And if space saving is a requirement, the Lab/Test recorders use only 7 inches of panel height. Options include full scale adjust able zero, variable spans and inputs, electric pen lifters, felt tip or capillary inking, bidirectional take-up system, synchro or digital drives, and stepper. TI recorders are backed by more than twenty years of proven quality, reliability, accuracy and performance plus a nationwide network of sales and service offices to serve you. For further information, please contact Texas Instruments Incorporated, P.O. Box 1443, M/S 619, Houston, Texas 77001. Or phone (713) 491-5115, ext. 3333, TWX 910-867-4702, Telex 775938. "Trademark of Texas Instruments Incorporated
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522 A · ANALYTICAL CHEMISTRY, VOL. 5 1 , NO. 4, APRIL 1979
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