Aimed at that elusive first-generation fuzz tone made most famous by Hendrix, in which at full guitar volume you get a sludgy, saturated, fluty, sustaining fuzz tone, and with the guitar volume turned down you get more of an overdrive sound.
The Skreddy Pedals™ 1966 MODERNIZED is made from silicon transistors for stability, but it uses low gain units that can render germanium type fuzz tones.
The extra controls let you emulate different classic fuzz tones from the 60's and early 70's along with improvements for some of the issues those early fuzzes had (noise reduction, adjustable tone, and input impedance selector switch).
This can be a smooth saturated fuzz or an articulate fuzz, depending on how you set it up. The bias control is set up to give you just the right classic response at noon, and you can play with it to go harder or softer.
No special power requirements, just regular negative ground 9v.