Difference between revisions of "C"

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Actually, there never was a Type C, but that name is sometimes
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{{Plugin Sidebar 2 |
used as shorthand for the official "Type 53C" and "Type 53/54C" nomenclatures.
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title=Tektronix Type (53)C |
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summary=Dual-trace 8.5 (24) MHz amplifier |
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image=53-54c-crop.jpg |
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caption=Tektronix Type C (later version) |
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series=[[500-series scopes]] |
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introduced=1954 |
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discontinued=1959 |
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manuals=
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<!-- * [http://w140.com/tek_fcp/tek_type_c_factory_cal_proc.pdf Factory calibration procedure] -->
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* [http://w140.com/tek-53_54c.pdf Tektronix Type 53/54C Manual (PDF, needs OCR)]
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* [[Media:tek_type_c_fcp.pdf| Tektronix Type C Factory Calibration Procedure (PDF, OCR)]]
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* [[Media:Tek 53c cal procedure.pdf|Tektronix Type C Calibration Procedure (PDF, OCR)]]
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}}
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:''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 plugin for [[500-series scopes]].
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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.
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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),
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It is very possibly the first dual-trace scope or plugin ever.
its bandwidth is 8.5MHz, and like most letter-series plugins,
+
 
its maximum vertical sensitivity is 50mV/div.  Unlike Type [[A]]
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==Specifications==
and Type [[B]], Type C had the ability to invert the signal
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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.
 
before display.
  
Type 53C was replaced by Type 53/54C in 1956 when
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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 1959 it
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bandwidth is 24 MHz in those scopes.  In [[introduced in 1959|1959]] it
was replaced by Type [[CA]].
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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
tube count of any letter-series plugin.  Each channel consists
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tube count of any letter-series plug-in.  Each channel consists
of a 6AK5 cathode-follower driving a 12AU6 differential pair
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of a [[6AK5]] cathode-follower driving a [[12AU6]] differential pair
which drives a 6AU6 differential pair.  The two channels
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which drives a [[6AU6]] differential pair.  The two channels
converge on a 12AT7 cross-coupled cathode-follower.  Four
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converge on a [[12AT7]] cross-coupled cathode-follower.  Four
more tubes, a 6AL5 and three 12AT7's, comprise a logic circuit
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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.
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given moment.  The options are A, B, CHOPPED, and ALT.
 +
 
 +
==Links==
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* [http://www.radiomuseum.org/r/tektronix_dual_trace_plug_in_pre_a.html 53C @ radiomuseum.org]
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* [http://www.vintagetek.org/wp-content/uploads/2011/10/Tek-series-500-development.pdf How the Tek 500 series came together]
 +
 
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==Pictures==
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<gallery>
 +
C_early_1.JPG|53C-Plugin´s Front
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C_early_2.JPG|53C-Plugin´s chassis
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C_early_3.JPG|53C-Plugin´s chassis side
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C later 1.JPG|53/54C-Plugin´s front
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IMG 0949.JPG|53/54C-Plugin´s chassis
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C later 3.JPG|53/54C-Plugin´s chassis bottom
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Tek c schem.png | Schematic diagram
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Tek 53-54c 1.jpg|53/54C
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Tek 53-54c 2.jpg|53/54C
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Tek 53-54c 3.jpg|53/54C
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Tek 53-54c 4.jpg|53/54C
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Tek 53-54c 5.jpg|53/54C
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Tek 53-54c 6.jpg|53/54C
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Tek 53-54c right.png|53/54C
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Tek 53-54c left.jpg|53/54C
 +
</gallery>
  
* http://w140.com/tek_fcp/tek_type_c_factory_cal_proc.pdf
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[[Category:500 series plugins]]

Latest revision as of 17:59, 3 May 2021

Tektronix Type (53)C
Dual-trace 8.5 (24) MHz amplifier
Tektronix Type C (later version)

Compatible with 500-series scopes

Produced from 1954 to 1959

Manuals
Manuals – Specifications – Links – Pictures
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