Csldmcml 16 Values 140 Pcs IC Assortment Kit Included ICs: 5pcs*LM324N, DIP-14, Quad Operational Amplifier 5 pcs*LM339N,DIP-8, Low Power Quad Voltage Comparators 10 pcs*LM358P, DIP-8, Low Power Dual Operational Amplifier 10 pcs*LM386,DIP-8, Low Power Audio Frequency Amplifier 10 pcs*LM393, DIP-14, Low Offset Voltage Dual Comparator 10 pcs*NE5532P, DIP-8, Dual high-performance low-noise Operational Amplifier 20 pcs*NE555P, DIP-8, Timer, Pulse generation, Oscillator 10 pcs*JRC4558D,DIP-8, Dual Operational Amplifier 20 pcs*PC817, DIP-4, General Purpose Photocoupler 10 pcs*UA741CN, DIP-8, high gain operational amplifier 5 pcs*ULN2003AN,DIP-16, Bipolar (BJT) Transistor Array 7 NPN Darlington 5 pcs*ULN2803APG,DIP-18, Bipolar (BJT) Transistor Array 8 NPN Darlington Included Sockets: 12 pcs*DIP8 Socket 4 pcs*DIP14 Socket 2 pcs*DIP16 Socket 2 pcs*DIP18 Socket 1 pcs*tweezers