- 2N2691
- Germanium Power Devices Corp.
- Germanium Power Transistors
- 2N2691A
- Germanium Power Devices Corp.
- Germanium Power Transistors
- 2N2691
- Solidev Semiconductors
- Solid State Products (Transistor Guide)
- 2N2691A
- Solidev Semiconductors
- Solid State Products (Transistor Guide)