3009Y-1-104

100k Ohms, 0.75 Watt rectangular cermet trimming potentiometer, low-profile top-adjust multi-turn housing configuration manufactured by Bourns. Features a 20-turn linear tuning matrix built to achieve ultra-fine voltage division adjustments on standard logic and analog power blocks. Primarily utilized to calibrate DC reference offsets, voltage compliance thresholds, and frequency tracking boundaries in space-constrained layouts. Industry exact equivalents include Bourns 3009Y-1-104, Beckman 78PR100K, Spectrol 64Y104, and federal cross-reference stocking number NSN 5905-00-112-4456. Historical equipment applications include the Atari Pong home video game console internal shielding boards, Wurlitzer 1050 electronic jukebox selector cards, Kurzweil K2000synthesizer patch parameters, Stern Lightning pinball machines, and Ensoniq TS-10 mainboards.