Abstract: In a printed circuit board having stacked units, a protruding portion of a first of the units can extend across and past at least one of the peripheral edges of a non-conductive substrate of a second of the units. The protruding portion of the first unit may include at least a portion of a conductor of the first unit, and the portion of the conductor of the first unit may be configured for being connected to an electronic device. The electronic device may include conductive leads or legs protruding from a body of the electronic device so that a gap is defined between the legs, and the protruding portion of the first unit may be positioned in the gap. Circuit board conductors on opposite sides of the protruding portion may be respectively connected to the legs, such as by soldering.