Show parts needed to make your B battery kw switch itch the illustration clims slims a switch for avar a variable lible Bb D The parts necessary to lo make this device are ar ones on switch arm and from five to seven switch points mount these on OB a small wood panel 3 inches square squam run a wire from each switch point ilo to each plus terminal on the 13 bat tery run wire from the center of tha I 1 regulates plate voltage 1 switch arm to the set also run it a wire from the minus side aide of the battery to the sot set both letb in the usual wanner manner tills this little switch will enable tho the user to regu Inte the plate voltage without having to talce take the trouble of 0 chnag chang ing numerous wires in case CASC flers flera are used the alou s side of 45 or volt battery Is also connected ta ant center or of the switch arm anu its dlo die digest |