A modular connector having a housing with one or more compartments, each compartment being structured and arranged to receive a plug. The measured quantity beverage dispenser efficiently and effectively delivers beverage to an end user by maintaining constant pressure within the disposable pouch. , an outside thread, and with the outer sleeve that is connected by means of screws to the drive element comprising a second thread, e. Helium gas is used to maintain a regulated pressure of helium in the cavity between the skin sheet and the core sheet, which allows such gas trapped between the skin sheet and the core sheet to diffuse through the core sheet. In one example, the signal line is a virtual ground node of a capacitive feedback amplifier and the leakage source device is a switch between the virtual ground node and a first terminal of a feedback capacitor of the amplifier.