Apparatus for checking for electrical frit breakdown in kinescopes

An apparatus for checking for electrical breakdown of the frit seal between the funnel and the screen of a kinescope envelope having an internal conductive coating in said funnel and in a neck affixed to said funnel comprising:

• means for loosely supporting said kinescope envelope in the vicinity of a particular location of said apparatus;
• floating positioning means for closely receiving said neck when said kinescope envelope is positioned in said vicinity;
• means for orientating said funnel in a selected orientation with respect to said apparatus, said means for orientating including a plurality of brackets arranged for simultaneous movement toward the sides of said kinescope envelope, each of said brackets including at least one bumper for rotating said kinescope envelope toward said selected orientation;
• means for positioning and securely maintaining said floating positioning means and said kinescope envelope in said particular location;
• drape-like electrical contact means suspended from said means for orientating for movement against a substantial portion of said frit seal to establish electrical continuity between said frit seal and said drape-like contact;
• probe means, including a movable electrical contact, arranged for insertion into said funnel portion through said neck portion;
• and means for moving said movable electrical contact against said conductive coating.