- 2N4209
- Advanced Semiconductor, Inc.
- Si, PNP, RF SMALL SIGNAL TRANSISTOR, TO-18
- 2N4209
- Central Semiconductor
- Small Signal Transistors
- 2N4209
- Crimson Semiconductor
- Transistor Selection Guide
- 2N4209
- Fairchild Semiconductor
- Full Line Condensed Catalogue 1977
- 2N4209
- National Semiconductor
- PNP Transistor
- 2N4209
- Raytheon Company
- Selection Guide 1977
- 2N4209
- Semitronics Corp.
- Metal Can Transistors - Silicon Small Signal Transistors
- 2N4209
- General Semiconductor, Inc.
- PNP SILICON TRANSISTOR