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Actually, there never was a Type C, but that name is sometimes
{{Plugin Sidebar
used as shorthand for the official "Type 53C" and "Type 53/54C" nomenclatures.
|manufacturer=Tektronix
|type=Type (53)C
|summary=Dual-trace 8.5 (24) MHz amplifier
|image=Tek 53 54 c.jpeg
|caption=Tektronix Type 53/54C
|series=500-series scopes
|introduced=1954
|discontinued=1959
|designers=John Kobbe;Bill Polits;
|manuals=
* [[Media:IM-53-54C.pdf|Tektronix Type 53/54C Manual]] (OCR)
* [[Media:tek_type_c_fcp.pdf| Tektronix Type C Factory Calibration Procedure]] (OCR)
* [[Media:Tek 53c cal procedure.pdf|Tektronix Type C Calibration Procedure]] (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 plugin for [[500-series scopes]].
It is likely that [[John Kobbe]] and/or [[Bill Polits]] were involved in the design.
It was introduced along with the [[531]] and [[535]] mainframes in 1954.
In those scopes (Tek never documented its performance in the 540's),
its bandwidth is 8.5MHz, and like most letter-series plugins,
its maximum vertical sensitivity is 50mV/div.  Unlike Type [[A]]
and Type [[B]], Type C had the ability to invert the signal
before display.


Type 53C was replaced by Type 53/54C in 1956 when
The '''Tektronix Type 53C''' is a dual-trace plug-in for [[500-series scopes]].
the [[541]] and [[545]] were introduced. The Type 53/54C's
It was [[introduced in 1954|introduced]] along with the [[531]] and [[535]] mainframes in 1954.  
bandwidth is 24MHz in those scopes.  In 1959 it
It is very possibly the first dual-trace scope or plugin ever.
was replaced by Type [[CA]].


At 15 tubes, the Type 53/54C and Type CA have the highest
==Specifications==
tube count of any letter-series plugin.  Each channel consists
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.   
of a 6AK5 cathode-follower driving a 12AU6 differential pair
Unlike the Type [[A]] and Type [[B]], the Type C had the ability to invert the signal before display.
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, or ALT.


* http://w140.com/tek_fcp/tek_type_c_factory_cal_proc.pdf
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 bandwidth is 24 MHz in those scopes.  In [[introduced in 1959|1959]] it was replaced by [[CA|Type CA]].
 
==Links==
{{Documents|Link=C}}
 
==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==
* [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]
 
==Pictures==
 
<gallery>
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
Tek 53-54c sideways2.jpeg|Gray 53/54C with sideways labeling
</gallery>
 
 
==Components==
{{Parts|C}}
 
[[Category:500 series plugins]]

Latest revision as of 05:03, 30 July 2024

Tektronix Type (53)C
Dual-trace 8.5 (24) MHz amplifier
Tektronix Type 53/54C

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.

It is likely that John Kobbe and/or Bill Polits were involved in the design.

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.

Links

Documents Referencing C

Document Class Title Authors Year Links
IBM 223-6725-2.pdf Application Note Tektronix oscilloscopes (IBM Customer Engineering Manual) 1960 310 • 310A • 531 • 531A • 535 • 535A • 545A • B • C • CA • D • G

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

  • 53C-Plugin´s Front

    53C-Plugin´s Front

  • 53C-Plugin´s chassis

    53C-Plugin´s chassis

  • 53C-Plugin´s chassis side

    53C-Plugin´s chassis side

  • 53/54C-Plugin´s front

    53/54C-Plugin´s front

  • 53/54C-Plugin´s chassis

    53/54C-Plugin´s chassis

  • 53/54C-Plugin´s chassis bottom

    53/54C-Plugin´s chassis bottom

  • Schematic diagram

    Schematic diagram

  • 53/54C

    53/54C

  • 53/54C

    53/54C

  • 53/54C

    53/54C

  • 53/54C

    53/54C

  • 53/54C

    53/54C

  • 53/54C

    53/54C

  • 53/54C

    53/54C

  • 53/54C

    53/54C

  • Gray 53/54C with sideways labeling

    Gray 53/54C with sideways labeling


Components

Some Parts Used in the C

Part Part Number(s) Class Description Used in
12AT7 154-0039-00 Vacuum Tube (Dual Triode) dual high-gain triode 161 • 180 • 310 • 310A • 315 • 316 • 360 • 502 • 502A • 511A • 512 • 513 • 513D • 514 • 514AD • 514D • 516 • 524 • 529 • RM529 • 544 • 546 • 547 • 556 • 565 • 570 • 3A2 • 75 • 3A75 • 1M1 • A • B • C • G • H • K • L • ML • M • N • K • R • S • Z • Keithley 610B
12AU6 154-0040-00 Vacuum Tube (Pentode) RF pentode 81 • 112 • 1L10 • 1L20 • 1L60 • 3L10 • 512 • 556 • 575 • 545 • 547 • 549 • 581 • 585 • A • B • C • G • K • H • L • ML • M • N • O • R • S • Z
12AU7 154-041 • 154-0041-00 • 154-0287-00 Vacuum Tube (Dual Triode) dual medium-μ triode 104 • 104A • 122 • 160 • 161 • 162 • 181 • 190 • 310 • 310A • 316 • 317 • 3C66 • 502 • 502A • 507 • 511A • 512 • 516 • 517 • 517A • 524 • 526 • 535 • 536 • 545 • 545A • 545B • 547 • 549 • 555 • 561 • 564 • 570 • 575 • 581 • 581A • 585 • 585A • C • D • E • N • Q • Hickok 1825
6AK5 154-0014-00 • 154-0206-00 • 154-0084-00 Vacuum Tube (Pentode) RF pentode B • C • CA • G • K • L • ML • S • Z • 517 • 517A • 524
6AL5 154-016 • 154-0016-00 • 154-0038-00 Vacuum Tube (Dual Diode) high-perveance dual diode 163 • 181 • 190 • 1M1 • 310 • 310A • 315 • 316 • 317 • 3B1 • 3B1S • 3B2 • 3B3 • 3B5 • 502 • 502A • 503 • 511 • 511A • 512 • 516 • 517 • 517A • 524 • 526 • 535 • 535A • 545 • 545A • 549 • 551 • 565 • 570 • 581 • 581A • 585 • 585A • C • T • Telequipment D52 • Telequipment D56 • Telequipment S52
6AU6 154-0022-00 • 157-0073-00 • 157-0059-00 • 154-0284-00 Vacuum Tube (Pentode) RF pentode 107 • 160 • 181 • 190 • 60 • 2A60 • 72 • 3A72 • 3C66 • 310 • 310A • 316 • 317 • 360 • 502 • 502A • 506 • 511 • 511A • 512 • 513 • 516 • 517 • 517A • 524 • 526 • 529 • RM529 • 531 • 531A • 535 • 536 • 545 • 545A • 546 • 547 • 549 • 555 • 561 • 561A • 561S • 564 • 565 • 567 • 570 • 575 • 581 • 581A • 585 • 585A • 80 • C • CA • Q
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