Transistors

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Some Soviet KT315b transistors.

A OC170 germanium PNP alloy junction transistor in TO1 metal case. These were a common transistor in the 1960s for RF and IF stages. This package is noted for a fourth 'shield' connection to the case. These transistors are now decades old and most have failed from the formation of internal metal crystalisation known as 'whiskers' that cause short circuits.

An early 1950s transistor using the precursor to the EIA/JEDEC part numbering system.

Transistors - The Invention That Changed The World

Transistors - The Invention That Changed The World. Thank you to my patreon supporters: Adam Flohr, darth patron, Zoltan Gramantik, Josh Levent, Henning Basma, Mark Govea Patreon: https://www.patreon.com/user?u=2825050&ty=h Facebook: http://facebook.com/realengineering1 Instagram: https://www.instagram.com/real.engineering https://www.instagram.com/brianjamesmcmanus Twitter: https://twitter.com/Fiosracht Music: Outro Music is The Catch by Maeson: https://soundcloud.com/maeson-1/tracks https://twitter.com/Maesonprod Intro Music: "Infinite Perspective" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License Transistor Zoom: http://www.nisenet.org/catalog/media/zoom_microchip_video

1. Heat sink
2. ZN414 transistor
3. Integrated circuits
4. 2N3055 silicon NPN power transistor
5. Raytheon CK718 PNP germanium hearing aid transistor
6. 2N107 germanium alloy junction PNP transistor (General Electric (GE))
7. American 2N34 PNP Germanium Alloy Junction Transistor
8. LM317 adjustable linear voltage regulator
9. Mullard OC170 germanium PNP alloy junction transistor
10. OC603 from Telefunken bipolar transistor
11. Raytheon CK722 PNP germanium junction transistor
12. Soviet КТ315 NPN bipolar junction transistor
13. TEWA TG50 germanium transistors
14. TO-92 transistor packing unit shell
15. Flanged power transistor packing unit shell
16. 2N107 germanium alloy junction PNP transistor (General Electric (GE))
17. 2N3055 silicon NPN power transistor
18. American 2N34 PNP Germanium Alloy Junction Transistor
19. Heat sink
20. LM317 adjustable linear voltage regulator
21. Mullard OC170 germanium PNP alloy junction transistor
22. OC603 from Telefunken bipolar transistor
23. Raytheon CK718 PNP germanium hearing aid transistor
24. Raytheon CK722 PNP germanium junction transistor
25. Soviet КТ315 NPN bipolar junction transistor
26. SSI small-scale integration and MSI medium-scale integration integrated circuits (1964-71)
27. TEWA TG50 germanium transistors
28. TO-126 transistor packing unit shell
29. TO-18 transistor packing unit shell
30. TO-5 transistor packing unit shell
31. TO-92
32. TO-92 transistor packing unit shell
33. Transistors
34. ZN414