BJFe Bone Bender II 4K

BJFe Bone Bender II (BB2) - Bjorn expands the classic Mark II tone bender with some added flexibility. Volume, Attack, Saturation and Tone knobs. This particular unit is constructed with (3) NOS UK Mullard CV7112 black germanium transistors. These are excellent (military spec OC140) transistors for this circuit with available feedback and bonus harmonic content.

from Bjorn: “It is a design that is not at mercy of transistor properties rather the gain of each of the three is used to minimize variances. The Mullards I chose because they sound great in the circuit. They have been consistent but are too low gain for use in Fuzz Face style circuits but overkill for this circuit sort of but excess gain is traded in the circuit for better stability and lower noise.“

9v standard center negative power supply or battery.