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Heathkit ET3400 Microcomputer Learning System with ET3200 Digital Design Experimenter, Protoboard PB-104 + miscellaneous parts & manuals. Utilizes the 6800 microprocessor. Overall appearance is excellent. Tested the ET3400 using examples in the instruction manual, it worked. Tested the ET3200 by using the clock to pulse the 4 LEDS, it worked. ET3400 approximate size in inches 12W, 12D, 3.5H. Item #8414

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