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Actually, there never was a Type C, but that name is sometimes
{{Plugin Sidebar 2 |
used as shorthand for the official "Type 53C" and "Type 53/54C" nomenclatures.
title=Tektronix Type (53)C |
summary=Dual-trace 8.5 (24) MHz amplifier |
image=53-54c-crop.jpg |
caption=Tektronix Type C (later version) |
series=[[500-series scopes]] |
introduced=1954 |
discontinued=1959 |
manuals=
<!-- * [http://w140.com/tek_fcp/tek_type_c_factory_cal_proc.pdf Factory calibration procedure] -->
* [http://w140.com/tek-53_54c.pdf Tektronix Type 53/54C Manual (PDF, needs OCR)]
* [[Media:tek_type_c_fcp.pdf| Tektronix Type C Factory Calibration Procedure (PDF, OCR)]]
* [[Media:Tek 53c cal procedure.pdf|Tektronix Type C Calibration Procedure (PDF, OCR)]]
}}
:''Actually, there never was a Type C, but that name is sometimes used as shorthand for the official "Type 53C" and "Type 53/54C" nomenclatures.''


The Type 53C is a dual-trace plug-in for [[500-series scopes]].
The '''Tektronix Type 53C''' is a dual-trace plug-in for [[500-series scopes]].
It was [[introduced in 1954|introduced]] along with the [[531]] and [[535]] mainframes in 1954.
It was [[introduced in 1954|introduced]] along with the [[531]] and [[535]] mainframes in 1954.  
In those scopes (Tek never documented its performance in the 540's),
It is very possibly the first dual-trace scope or plugin ever.
its bandwidth is 8.5MHz, and like most letter-series plug-ins,
 
its maximum vertical sensitivity is 50mV/div.  Unlike the Type [[A]]
==Specifications==
In the 53x scopes (Tek never documented its performance in the 540's),
its bandwidth is 8.5 MHz, and like most letter-series plug-ins,
its maximum vertical sensitivity is 50 mV/div.  Unlike the Type [[A]]
and Type [[B]], the Type C had the ability to invert the signal
and Type [[B]], the Type C had the ability to invert the signal
before display.
before display.
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Type 53C was replaced by Type 53/54C in [[introduced in 1956|1956]] when
Type 53C was replaced by Type 53/54C in [[introduced in 1956|1956]] when
the [[541]] and [[545]] were introduced.  The Type 53/54C's
the [[541]] and [[545]] were introduced.  The Type 53/54C's
bandwidth is 24MHz in those scopes.  In [[introduced in 1959|1959]] it
bandwidth is 24 MHz in those scopes.  In [[introduced in 1959|1959]] it
was replaced by Type [[CA]].
was replaced by [[CA|Type CA]].
 
==Internals==


At 15 tubes, the Type 53/54C and Type CA have the highest
At 15 tubes, the Type 53/54C and Type CA have the highest
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more tubes, a [[6AL5]] and three 12AT7's, comprise a logic circuit
more tubes, a [[6AL5]] and three 12AT7's, comprise a logic circuit
which determines which channel drives the output at any
which determines which channel drives the output at any
given moment.  The options are A, B, CHOPPED, or ALT.
given moment.  The options are A, B, CHOPPED, and ALT.
 
==Links==
* [http://www.radiomuseum.org/r/tektronix_dual_trace_plug_in_pre_a.html 53C @ radiomuseum.org]
* [http://www.vintagetek.org/wp-content/uploads/2011/10/Tek-series-500-development.pdf How the Tek 500 series came together]


* http://w140.com/tek_fcp/tek_type_c_factory_cal_proc.pdf
==Pictures==
* http://w140.com/tek-53_54c.pdf


<gallery>
<gallery>
Image:Tek c schem.png
C_early_1.JPG|53C-Plugin´s Front
C_early_2.JPG|53C-Plugin´s chassis
C_early_3.JPG|53C-Plugin´s chassis side
C later 1.JPG|53/54C-Plugin´s front
IMG 0949.JPG|53/54C-Plugin´s chassis
C later 3.JPG|53/54C-Plugin´s chassis bottom
Tek c schem.png | Schematic diagram
Tek 53-54c 1.jpg|53/54C
Tek 53-54c 2.jpg|53/54C
Tek 53-54c 3.jpg|53/54C
Tek 53-54c 4.jpg|53/54C
Tek 53-54c 5.jpg|53/54C
Tek 53-54c 6.jpg|53/54C
Tek 53-54c right.png|53/54C
Tek 53-54c left.jpg|53/54C
</gallery>
</gallery>
[[Category:500 series plugins]]

Revision as of 17:59, 3 May 2021

Template:Plugin Sidebar 2

Actually, there never was a Type C, but that name is sometimes used as shorthand for the official "Type 53C" and "Type 53/54C" nomenclatures.

The Tektronix Type 53C is a dual-trace plug-in for 500-series scopes. It was introduced along with the 531 and 535 mainframes in 1954. It is very possibly the first dual-trace scope or plugin ever.

Specifications

In the 53x scopes (Tek never documented its performance in the 540's), its bandwidth is 8.5 MHz, and like most letter-series plug-ins, its maximum vertical sensitivity is 50 mV/div. Unlike the Type A and Type B, the Type C had the ability to invert the signal before display.

Type 53C was replaced by Type 53/54C in 1956 when the 541 and 545 were introduced. The Type 53/54C's bandwidth is 24 MHz in those scopes. In 1959 it was replaced by Type CA.

Internals

At 15 tubes, the Type 53/54C and Type CA have the highest tube count of any letter-series plug-in. Each channel consists of a 6AK5 cathode-follower driving a 12AU6 differential pair which drives a 6AU6 differential pair. The two channels converge on a 12AT7 cross-coupled cathode-follower. Four more tubes, a 6AL5 and three 12AT7's, comprise a logic circuit which determines which channel drives the output at any given moment. The options are A, B, CHOPPED, and ALT.

Links

Pictures