| 摘要 |
PURPOSE:To assemble a CRT simply, and to adjust characteristics excellently by constituting circuits, unnecessary radiation of which is reduced and which can adjust the characteristics of video output circuits, in the video output circuits to one or a plurality of leads. CONSTITUTION:Peaking can be regulated even in a load resistor for a transistor Q1 and even in a resistor for negative feedback, but unnecessary radiant energy is increased because an amplitude level is large in C3, R5, L1, etc., on the load resistor side. Since an amplitude level on the other hand side is small between the transistor Q1 on the resistor side for negative feedback and a resistor R3, unnecessary radiation is reduced even when a circuit for peaking for adjustment is shaped from second and third terminals. Consequently, a video output circuit surrounded by a dotted line region is shielded by a substrate supporter and a first cover body, and the peaking circuit is formed between the second and third terminals and exposed to the outside, thus also executing adjustment on the delivery side, then minimally inhibiting unnecessary radiation. Accordingly, a CRT is assembled simply, and the characteristics of the CRT can be regulated to excellent ones.
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