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555: Difference between revisions
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where it is connected to the primary of the filament transformer. | where it is connected to the primary of the filament transformer. | ||
A sample of the output of the filament transformer is sent | A sample of the output of the filament transformer is sent | ||
back through the interconnection cable from the indicator unit | back through the interconnection cable (part number 012-032) | ||
to the power supply unit. This performs two functions. | from the indicator unit to the power supply unit. | ||
This performs two functions. | |||
First, the filament voltage that is sent back to the power supply unit | First, the filament voltage that is sent back to the power supply unit | ||
is used to heat the cathodes of tubes in the power supply unit. | is used to heat the cathodes of tubes in the power supply unit. | ||
| Line 45: | Line 46: | ||
== Vertical Amplifier == | == Vertical Amplifier == | ||
The Tektronix | The Tektronix 555 has a six-section differential | ||
[[distributed amplifier|distributed vertical output amplifier]] | [[distributed amplifier|distributed vertical output amplifier]] | ||
made of [[6DK6]] tubes. It is the same as the vertical output amplifier in | made of [[6DK6]] tubes. It is the same as the vertical output amplifier in | ||