Cathode heater for colour CRT - has three coil heating elements mounted on glass block having conductor path on surface

摘要

The heater system has a mounting block (22) that has two signal conducting lines (25a,25b) on the surface. The conductors are formed with projecting sections (24a,24b) to which the coil formed heating elements (90) can be welded. Each heating coil has a pair of contact pins (90a,90b) that are spaced the same amt. as the contact points on the block. Glass strips (60) are located on both sides. ADVANTAGE - Construction has high stability and is simple. Facilitates high productivity mfr..