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R54/R58 = 2K4 in BOM
I tried the output volume mod as well as the feedbackpath mod and found both mods pretty useful.
R54 and R58 are 5.1K now, which feels closer to unity gain for me, but it is probably easier to overload the phaser with high feedback. 
approved by DSL-man, but try 4k7 too
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Standalone Version with randomsource Version pcb from 2015
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