![File:Sectionalized transistor besides an ordinary paper clip – Bell Telephone Magazine (Spring 1950, p. 22) (14568400179).jpg - Wikimedia Commons File:Sectionalized transistor besides an ordinary paper clip – Bell Telephone Magazine (Spring 1950, p. 22) (14568400179).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/6/68/Sectionalized_transistor_besides_an_ordinary_paper_clip_%E2%80%93_Bell_Telephone_Magazine_%28Spring_1950%2C_p._22%29_%2814568400179%29.jpg)
File:Sectionalized transistor besides an ordinary paper clip – Bell Telephone Magazine (Spring 1950, p. 22) (14568400179).jpg - Wikimedia Commons
![Fischer Elektronik Transistor bracket (10 slots) THFM 10 Suitable for: TO 218, TO 220, TO 247, TO 264, SOT 32 Heat sink | Conrad.com Fischer Elektronik Transistor bracket (10 slots) THFM 10 Suitable for: TO 218, TO 220, TO 247, TO 264, SOT 32 Heat sink | Conrad.com](https://asset.conrad.com/media10/isa/160267/c1/-/en/188088_BB_00_FB/image.jpg)
Fischer Elektronik Transistor bracket (10 slots) THFM 10 Suitable for: TO 218, TO 220, TO 247, TO 264, SOT 32 Heat sink | Conrad.com
![TO-220 Clip-On Heatsink : ID 977 : $0.95 : Adafruit Industries, Unique & fun DIY electronics and kits TO-220 Clip-On Heatsink : ID 977 : $0.95 : Adafruit Industries, Unique & fun DIY electronics and kits](https://cdn-shop.adafruit.com/970x728/977-06.jpg)