INTEGRATED CIRCUITS LM139/239/239A/339/339A/LM290.
MC3302 - Quad Single Supply Comparators
MC33025 - High Speed Double-Ended PWM Controller
MC33023 - High Speed Single-Ended PWM Controller
MC3302 - Single Supply Quad Comparators
MC3302 - Quad voltage comparator
MC33025 - High Speed Single-Ended PWM Controller