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10 specifications: This set contains 10 specifications of circuit chips, namely NE555, LM324, LM393, UA741, ULN2803, LM358, LM386, NE5532, ULN2003, PC817. 85-piece set: each specification of chips has a sufficient quantity that you can use to use them for home work and assembly. VERSATILE PURPOSE This set can be used in precise timers, dual op amps, audio amplifiers, darlington arrays, four op amps, bass guitar overload pedal PCB, etc. Fine made: these circuit chips are finely processed, the pins are not easy to bend and can be perfectly reoriented. With storage box: these chips come with a storage box with compartments, which are very convenient for storing and carrying.; Product description Specification: Item Type:IC Assortment Kit Material: plastic. Colour: black. Specifications: NE555, LM324, LM393, UA741, ULN2803, LM358, LM386, NE5532, ULN2003, PC817, DIP-IC welding adapter connector Application: widely used in daily assembly, such as precise timer, dual operational amplifier, audio amplifier, darlington array, four-op amplifier, bass guitar overload pedal PCB, etc. Package list: 10 x NE555 5 x LM324. 10 x LM393. 10 x UA741. 5 x ULN2803. 10 x LM358. 10 x LM386. 10 x NE5532. 5 x ULN2003 10 x PC817. 1 x storage box.; Product description Specification: Item Type:IC Assortment Kit Material: plastic. Colour: black. Specifications: NE555, LM324, LM393, UA741, ULN2803, LM358, LM386, NE5532, ULN2003, PC817, DIP-IC welding adapter connector Application: widely used in daily assembly, such as precise timer, dual operational amplifier, audio amplifier, darlington array, four-op amplifier, bass guitar overload pedal PCB, etc. Package list: 10 x NE555 5 x LM324. 10 x LM393. 10 x UA741. 5 x ULN2803. 10 x LM358. 10 x LM386. 10 x NE5532. 5 x ULN2003 10 x PC817. 1 x storage box.; Specification: Item Type:IC Assortment Kit Material: plastic. Colour: black. Specifications: NE555, LM324, LM393, UA741, ULN2803, LM358, LM386, NE5532, ULN2003, PC817, DIP-IC welding adapter connector Application: widely used in daily assembly, such as precise timer, dual operational amplifier, audio amplifier, darlington array, four-op amplifier, bass guitar overload pedal PCB, etc. Package list: 10 x NE555 5 x LM324. 10 x LM393. 10 x UA741. 5 x ULN2803. 10 x LM358. 10 x LM386. 10 x NE5532. 5 x ULN2003 10 x PC817. 1 x storage box.