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What is the tip size of the H&K Tube Factor/Rotosphere Adaptor?


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Boss is 2.1x5.5mm, and for the H&K I'd go for a 2.5x5.5mm plug - those will work fine with both 2.1 and 2.5mm jacks, so you'd be safe either way.


Polarity is a non-issue, as the H&K units use 13 volts AC.



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