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Spark Timer
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This low friction three-track spark tape timer features a fully enclosed spark system. The economical apparatus delivers 60 Hz sparks and features a straight, unobstructed paper path for low friction to yield better experiment results. The wide paper path allows up to three consecutive traces to be recorded on a standard 5/8" wide wax-coated spark tape, using the adjustable paper guide. The spark records have clear, precise marks with a very low dropout rate for accurate experimentation. Safety features include a fixed, fully enclosed spark system, pushbutton activation of the recording spark signals, and an internal overload fuse that cannot be accessed from outside without tools. Includes roll of spark tape and operation manual. 110 VAC. Size: 6" x 6" x 3".
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