1、Transistors are basic semiconductor device that control current, which can also be used as a non-contact switch 2、There are total 60 pieces of transistors in 10 values in this set which will meet you basic needs 3、All transistors are well packed and assorted in a transparent box for convenient storage 4、Each transistors is clear marked so you can easily identify which type of transistors you need 5、This is a great assortment of transistors for electronic professionals or enthusiasts Features: Transistors are basic semiconductor device that control current, which can also be used as a non-contact switch. There are total 60 pieces of transistors in 10 values in this set which will meet you basic needs. All transistors are well packed and assorted in a transparent box for convenient storage. Each transistors is clear marked so you can easily identify which type of transistors you need. This is a great assortment of transistors for electronic professionals or enthusiasts. Specifications: Material: GE-N-FET Package: P-DIT Conduction Type: depletion-mode Use: A/Broadband amplification Value and Qty: L7805 6PCS L7806 6PCS L7809 6PCS L7812 6PCS L7815 6PCS L7824 6PCS L7905 6PCS L7912 6PCS L7915 6PCS LM317 6PCS Package Includes: 1 Box x Transistors Note: Transistors are sorted manually, so there might be small mistakes on type and quantity. Thanks for your understanding.