| 摘要 |
<p>The output from the aerial (10) is fed via a conventional tuner and demodulator (20) to a matrix (30). The blue, green and red output signals (32,34,36) are fed to a video signal amplifier (40). The outputs (44) of the amplifiers are fed to one of the three colour electron gun inputs (52,54,56). Each amplifier has two stages: the first (60) is a multi-transistor cascaded current multiplier, while the second (70) is a single stage current amplifier.</p> |
