Miscellaneous Electronics
JHS Pedals Active A/B/Y
JHS Pedals Active A/B/Y Switch, Changeover Switch, A/B/Y switcher / splitter, Active operating principle, Output transformer eliminates hum - no ground lift necessary, FET transistors for silent switching, Switch for reversing polarity (channel A),...
https://www.bizrate.co.uk/miscellaneouselectronics/jhs-pedals-active-a-b-y-oid9735795608.html