You cannot power two pedals with different polarities from the same power supply. What is special about powering Germanium fuzz pedals? The correct type of Germanium transistor used in many fuzz pedals are special in that they require opposite polarity power. They are our preferred transistors and would be used even if Jimmy Page himself wanted a Twin Bender.Ĭan I choose a different transistor type for a Twin Bender? No. Compared to an average OC75 set with similar gain, they sound nearly identical. They have gain ranges that are perfect for the Twin Bender circuit, and sound superb. What type of transistors are used in the Twin Bender? The transistors being used right now were made in the former USSR, probably in the 1970s. This is because specs can vary wildly even when comparing 2 identical transistors (one reason they aren't made anymore), so to compare 2 transistors of different makes is even more difficult. This is MUCH more important than what type of transistor it is.

What transistors make good fuzz? The tested specifications of germanium transistors are the most important things that determines how a fuzz will sound. The other problem is that the limited supply of them has been sorted through many times over the decades and much of what remains does not make for good fuzz pedals. The problem is, these transistors haven't been made for decades, so they are quite scarce, and very expensive.

I heard that OC75s (or NKT275s, or AC128s, etc.) sound best, is that true? Certain transistors are sought after because they were used in original pedals, or by reputation of good tone.