LM339N/NOPB Texas Instruments, Quad Comparator, Open Collector O/P, 1.3μs 3 to 28 V 14-Pin MDIP | RS
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LM339 LM339SN LM339S Single Supply Quad Comparators PDIP−14(PACK OF 5) by Indian Hobby Center : Amazon.in: Industrial & Scientific
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Invento 4pcs LM339N - Low Power Low Offset Voltage Quad Comparator - PDIP14 : Amazon.in: Industrial & Scientific
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