"Made in Bakersfield, California ca.1969-70, ...
Designed by Ed Sanner of Mosrite, who was previously responsible for the ornery yet iconic Fuzzrite. Mosrite went under around 1969 and Rosac emerged from the ashes. There was a Nu Wa and a Nu Fuzz as well. This model simply combined the two circuits. It has two batteries, as they simply transplanted two individually gooped 9v “modules”, one from the Nu Fuzz, one from the Nu Wa, into one housing. They are the pink rectangles in the photos. If something goes wrong, one is in trouble, but this example is still operational.
The silicon fuzz circuit apparently differs from the earlier Fuzzrite by having a tone control replacing the balance (fuzz) control. The tone control is very effective, seemingly padding out the low end on the bassier settings and getting more typical Fuzzrite treble unpleasantness when turned up. With the wah also boosting treble, there are lots of options - just don’t expect the wah to “quack” so much. The Wa circuit has no inductor, so is necessarily fairly low key. The company more or less admits this by pimping it as a treble booster in the instructions."