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The Tektronix Type P plug-in is a calibration aid [[introduced in 1959]] | {{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=1963 | | |||
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)] | |||
}} | |||
The '''Tektronix Type P''' plug-in is a calibration aid [[introduced in 1959]] | |||
for [[500-series scopes]]. | for [[500-series scopes]]. | ||
It applies a fast (4 nanosecond risetime) voltage step to the mainframe vertical amplifier, | It applies a fast (4 nanosecond risetime) voltage step to the mainframe vertical amplifier, | ||
via plug-in connector pins 1 and 3. | via plug-in connector pins 1 and 3. | ||
The Type P is designed to simulate a perfectly-adjusted Type [[K]] | The Type P is designed to simulate a perfectly-adjusted Type [[K]] | ||
plug-in being driven by a Type [[107]] square-wave generator. | 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, | The idea is to calibrate a mainframe using Type P, | ||
then use this mainframe and a 107 to calibrate other plug-ins. | then use this mainframe and a 107 to calibrate other plug-ins. | ||
| Line 13: | Line 26: | ||
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 6.3 VAC that is supplied by the scope mainframe on pins 13 and 14. | the 6.3 VAC 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 23: | Line 36: | ||
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> | ||
| Line 31: | Line 43: | ||
Image:Type_p_schem.png | Image:Type_p_schem.png | ||
</gallery> | </gallery> | ||
[[Category:500 series plugins]] | |||
[[Category:Calibration fixtures]] | |||