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It does contain a [[selenium rectifiers|selenium rectifier]] and a [[mercury switch]]. | It does contain a [[selenium rectifiers|selenium rectifier]] and a [[mercury switch]]. | ||
The selenium rectifier in the Type P has four sections and full-wave rectifies | The selenium rectifier in the Type P has four sections and full-wave rectifies | ||
the 6. | the 6.3 V<sub>AC</sub> that is supplied by the scope mainframe on pins 13 and 14. | ||
The 120 Hz (assuming 60 Hz mains) component of the full-wave rectified waveform | The 120 Hz (assuming 60 Hz mains) component of the full-wave rectified waveform | ||
is applied to the coil of the mercury switch to drive the opening and closing | is applied to the coil of the mercury switch to drive the opening and closing | ||
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best operating point. | best operating point. | ||
The Type P was the only new plug-in for [[introduced in 1959|1959]], | The Type P was the only new plug-in for [[introduced in 1959|1959]], except for the upgrade | ||
from Type 53/54[[C]] to Type [[CA]]. It was dropped after 1963, replaced by the [[TU-7]]. | from Type 53/54[[C]] to Type [[CA]]. It was dropped after 1963, replaced by the [[TU-7]]. | ||
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<gallery> | <gallery> | ||
Tek_type_p.jpg|Type P | |||
Type_p_inside.jpg|Type P | |||
Type_p_schem.png|Type P Schematic | |||
Tek 53-54p front.jpg|Type 53/54P | Tek 53-54p front.jpg|Type 53/54P | ||
Tek 53-54p inside.jpg|Type 53/54P | Tek 53-54p inside.jpg|Type 53/54P | ||