StamChild SA-670 - Stereo Analog Tube Compressor | Stam Audio
The Fairchild Compressor Explained | The History, Controls, and Sounds of a Legendary Compressor - YouTube
Vintage Rewind: Fairchild 660 and 670
The Fairchild 660 / 670 Tube Compressor/Limiter - Vintage King
Black Tornado Studio - Fairchild 670 Limiter. If you examine any monophonic or stereo record or tape available today, from any major labels throughout the world, it undoubtedly uses a FAIRCHILD limiter