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the indicator unit connected. The regulator tubes in the power supply | the indicator unit connected. The regulator tubes in the power supply | ||
would remain cold without filament power, and would not pass any current. | would remain cold without filament power, and would not pass any current. | ||
The 555 has a six-section differential distributed vertical output amplifier | |||
made of [[6DK6]] tubes. An L-C delay line is between the vertical output amplifier | |||
and the CRT vertical deflection plates. | |||
Architecturally, the [[555]], with its four plug-ins, is similar | Architecturally, the [[555]], with its four plug-ins, is similar |