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507: Difference between revisions
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is permanently AC-coupled and, unusually, the DC blocking capacitor is after the input attenuator. | is permanently AC-coupled and, unusually, the DC blocking capacitor is after the input attenuator. | ||
The 507 has | The 507 has a total acceleration voltage of 24 kV, produced by four [[1X2]] tubes. | ||
The lower-voltage power supplies, located in the external box, | The lower-voltage power supplies, located in the external box, | ||
are all tube except for [[selenium rectifiers]] for some of the lower voltages. | are all tube except for [[selenium rectifiers]] for some of the lower voltages. | ||