The pneumatic cotton harvesting apparatus includes a plurality of harvesting heads arranged in adjacent spaced relation side by side with each having a side panel opposing a side panel on an adjacent opposing harvesting head. The sequence may be any sequence having unique subsequences, and may be a pseudo-random noise sequence such that each N-bit subsequence occurs only once on the track. The semiconductor integral circuit also has a logic circuit to which an input signal having a first or second voltage is input. A pair of swing arms connect the fixed shaft to a shaft of the tension roller. The bezel also has a pair of embedded magnets located adjacent to its front surface.