AT-101 – Fairchild 670 perfecto – Mastering Mansion Pro Audio
Fairchild 660 & 670
Fairchild 670 - history and how it works
Frontpanel Classic Compressor Fairchild 670 Black Anodized inclusive
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
IK Multimedia T-Racks Vintage Tube - Black Octopus Sound