10 specifications: This set includes 10 types of ICs, namely NE555, LM324, LM393, UA741, ULN2803, LM358, LM386, NE5532, ULN2003, PC817. 85-piece set: Each IC type has sufficient quantity for you to use, suitable for home circuit work and assembly. Broad application: This set can be used extensively in precise timers, dual op-amp circuits, audio amplifiers, Darlington arrays, quad op-amps, bass guitar overdrive pedal PCBs, etc. Well-crafted: These ICs are finely manufactured with pins that are not easily bent and can be aligned perfectly. Comes with storage box: These chips are delivered with a storage box featuring compartments, very convenient for storage and transport. Product type: IC component set Material: Plastic Color: Black Specifications: NE555, LM324, LM393, UA741, ULN2803, LM358, LM386, NE5532, ULN2003, PC817, DIP IC solder adapter contact Application: Widely used in daily assembly tasks such as precise timers, dual op-amp circuits, audio amplifiers, Darlington arrays, quad op-amps, bass guitar overdrive pedal PCBs, etc.