Description Manufactured with silicon tube and germanium tube material, reliable and can be applied for a long time. These kits are basic components of semiconductor, which can amplify current, with low power consumption, can be used for a long time. Features -Color:Black -Material:Silicon tube, germanium tube -Size:12.80X6.50X2.20cm/5.03X2.55X0.86in -Specification: S8050, S8550, S9012, S9013, S9014, 2N3904, 2N3906, C1815, A1015, MJE13001 -With high dielectric strength, fast switching, large power dissipation and good current performance. -The transistors are compact in size and light in weight, which is nice for carrying and storing -The transistors are great for electrical experiments, DIY projects, electrical products repairing, etc. -These are different types of our transistors for different use, very practical and professional. -The transistors are packed in the rugged, convenient, sealing plastic storage case, easy to store. With high dielectric strength, fast switching, large power dissipation and good current performance. The transistors are compact in size and light in weight, which is nice for carrying and storing The transistors are great for electrical experiments, DIY projects, electrical products repairing, etc. These are different types of our transistors for different use, very practical and professional. The transistors are packed in the rugged, convenient, sealing plastic storage case, easy to store.