TY - JOUR AU - Gentry, Thomas A. AB - NUMBER OCTOBER, 1962 INEXPENSIVE PLUG-IN CIRCUITS' THOMAS A. GENTRY2 COLUMBIA UNIVERSITY In many laboratories, particularly in those for student instruction, economics and available space determine the type of control circuits that are used. In one of the advanced undergraduate laboratories at Columbia University, a programming and recording unit was developed, using inexpensive plug-in circuit boards. leading to the Cannon connector panel. The plug-in board, on which the programming circuits are wired, is placed on the front of the rack. Figure lb shows this board in the center of the rack, directly above the rectangular Cannon plugs. This circuit board is constructed of standard pegboard, mounted with Nu-Way studs to represent each contact of the components on the rack. The Nu-Way studs are wired to male Cannon connectors, which are mated to the females coming from the programming elements. The board can be removed from the rack by disconnecting the Cannon plugs and by removing the four retaining bolts in the corners of the circuit panel that attach the pegboard to the rack. Any number of pegboard panels can be constructed, each representing the total switching capacity of the rack. In this manner, each student can have a separate TI - INEXPENSIVE PLUG‐IN CIRCUITS JF - Journal of the Experimental Analysis of Behavior DO - 10.1901/jeab.1962.5-460 DA - 1962-10-01 UR - https://www.deepdyve.com/lp/wiley/inexpensive-plug-in-circuits-5ZRFBcOZIJ SP - 460 VL - 5 IS - 4 DP - DeepDyve ER -