Stereo limiter.


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The AT-101 is a recreation of the original Fairchild 670 stereo limiter, built using traditional point-to-point wiring methods and standard turret component mounts. Its audio path and power supply are completely free from printed circuit boards. Like the original Fairchild 670, the AT-101 has been assembled completely by hand and uses high-quality, modern components. The tube complement is exactly the same, using a new generation 6386 remote cut-off triode developed to replace the original 50-year old tube types.
A few minor changes to the front panel and electronics have been made, the Lateral/Vertical switch has been replaced with a Stereo Link switch, and a power supply alteration has been made, allowing controlled heater voltage switch-on. A simple electronic traffic light system monitoring temperature has also been added.