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The Tektronix Type P plug-in is a calibration aid [[introduced in 1959]] for [[500-series scopes]] | {{Plugin Sidebar 2 | | ||
title=Tektronix Type P | | |||
summary=Calibration aid | | |||
series=[[500-series scopes]]| | |||
image=Tek type p.jpg | | |||
caption=Tek Type P | | |||
introduced=1959 | | |||
discontinued=1964 | | |||
manuals= | |||
* [http://bama.edebris.com/manuals/tek/p/ Tektronix Type P Manual (PDF)] | |||
<!-- * [http://w140.com/tek_fcp/tek_type_p_factory_cal_proc.pdf Tektronix Type P Factory Calibration Procedure (PDF)] --> | |||
* [[Media:070-346.pdf|Tektronix Type P Manual (PDF, OCR, bad-OCR)]] | |||
* [[Media:tek_type_p_fcp.pdf|Tektronix Type P Factory Calibration Procedure (PDF, OCR)]] | |||
* [[Media:Tek type p irb.pdf|Tektronix Type P Instrument Reference Book (PDF, OCR)]] | |||
}} | |||
The '''Tektronix Type P''' plug-in is a calibration aid [[introduced in 1959]] for [[500-series scopes]] that applies a | |||
fast (4 nanosecond risetime) voltage step to the mainframe vertical amplifier via plug-in connector pins 1 and 3. | |||
Type P is designed to simulate a perfectly-adjusted Type [[K]] plug-in being driven by a Type [[107]] square-wave generator, | |||
and is used when adjusting the peaking coils and the [[delay line]]. | |||
The idea is to calibrate a mainframe using Type P, then use this mainframe and a 107 to calibrate other plug-ins. | |||
The Type P does not contain any tubes, transistors, or tunnel diodes. | The Type P does not contain any tubes, transistors, or tunnel diodes. | ||
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 | 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 | ||
of the contacts. An adjustable fraction of the DC component of the full-wave | of the contacts. An adjustable fraction of the DC component of the full-wave | ||
Line 14: | Line 32: | ||
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]]. | ||
==Pictures== | |||
<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 inside.jpg|Type 53/54P | |||
</gallery> | </gallery> | ||
[[Category:500 series plugins]] | |||
[[Category:Calibration fixtures]] |