A monitor housing has a front casing connected with a rear casing enclosing a cathode ray tube. The main assembly includes an output contact movable between electrical connecting and retracted positions, a displaceable member for moving the output contact, and an elastic function member for elastically urging the displaceable member to urge the output contact toward the retracted position. The adhesive member includes a reinforced section and an adhesive section. An adjustable throttle is formed between a housing of the main valve and the valve piston. Formed into the component of areal form is at least one stamped portion, the height of which is formed so as to correspond to a minimum layer thickness of the cohesive connection.