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{{Plugin Sidebar 2 |
{{Plugin Sidebar  
title=Tektronix Type (53)C |
|manufacturer=Tektronix
summary=Dual-trace 8.5 (24) MHz amplifier |
|type=Type (53)C  
image=53-54c-crop.jpg |
|summary=Dual-trace 8.5 (24) MHz amplifier  
caption=Tektronix Type C (later version) |
|image=53-54c-crop.jpg  
series=[[500-series scopes]] |
|caption=Tektronix Type C (later version)  
introduced=1954 |
|series=500-series scopes  
discontinued=1959 |
|introduced=1954  
manuals=
|discontinued=1959  
|manuals=
<!-- * [http://w140.com/tek_fcp/tek_type_c_factory_cal_proc.pdf Factory calibration procedure] -->
<!-- * [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)]
* [http://w140.com/tek-53_54c.pdf Tektronix Type 53/54C Manual (PDF, needs OCR)]

Revision as of 05:49, 9 August 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