Zerosum Inertia - Zi61

the zi51 is the metasonix r51 circuit, used with permission, redesigned to take 6ak5/5654 tubes (only use 6ak5 or 5654 tubes in this module) and added feedback.the input knob controls the audio input level. distort controls the bias adjustment of the distortion level.vca adjusts the amount of cv applied to the vca cv input.you need to have a cv source applied to the vca cv input jack to get the most results from the vca knob.feedback controls the amount of signal fed back into the input.a modulation signal of at least 5v is recommended to insert into the vca cv input.the module functions best when a modulation source is fed into the vca cv input to fully open the vca level of the module.the distort and vca knobs interact with each other and the more voltage that is applied to the vca cv input the more effect the distort knob has when turned.it is recommended to let the module warm up several minutes before operating and to start with settings as described:level knob about halfway.disto