Abstract
This paper describes an inexpensive, solid state shock scrambler. The circuit employs TTL logic and mercury-wetted relays for quiet, reliable operation. The unit can control shock presentation to 16 grids and operates with an efficiency of 50%; for example, on any given clock pulse, 50% of the grids are positive and the other 50%, negative.
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References
Brush, F. R. An efficient, inexpensive relay grid scrambler for multiple boxes.Journal of the Experimental Analysis of Behavior, 1967,10, 393–394.
Graefe, J., &Pisacreta, R. An integrated circuit shock scrambler.Behavior Research Methods & Instrumentation, 1977,9, 499–500.
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Appreciation is extended to F. Robert Brush, who made several suggestions during the development of the design. The design and implementation of this equipment was supported by grants from the Finger Lakes Chapter of the American Heart Association and the American Heart Association.
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Sutterer, J.R. Another inexpensive, efficient, solid state shock scrambler. Behavior Research Methods & Instrumentation 12, 48–50 (1980). https://doi.org/10.3758/BF03208324
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DOI: https://doi.org/10.3758/BF03208324