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535 (view source)

Revision as of 04:02, 27 March 2023

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|designers=Dick Rhiger  
|designers=Dick Rhiger  
|manuals=
|manuals=
* [[Media:070-198.pdf | Tektronix 535 Manual (66 MB, PDF)]]
* [[Media:070-198.pdf     | Tektronix 535 Manual]]
* [[Media:070-0145-01.pdf | Tektronix 535A Manual (22 MB, OCR PDF)]]
* [[Media:070-0145-01.pdf | Tektronix 535A Manual]] (OCR)
* [[Media:tek_type_535_545_operators_handbook.pdf|Tektronix 535 and 545 Operators Handbook (PDF, OCR)]]
* [[Media:tek_type_535_545_operators_handbook.pdf|Tektronix 535 and 545 Operators Handbook]] (OCR)
* [[Media:tek_type_535_modification_summary.pdf|Tektronix 535 Modification Summary (PDF, OCR, bad-OCR)]]
* [[Media:tek_type_535_modification_summary.pdf|Tektronix 535 Modification Summary]] (bad-OCR)
* [[Media:navair_17-20aw-08_manual.pdf|Navair 17-20AW-08 Manual, which discusses the 535 (PDF, OCR)]]
* [[Media:navair_17-20aw-08_manual.pdf|Navair 17-20AW-08 Manual, which discusses the 535]] (OCR)
<small>
<small>
'''Calibration'''
'''Calibration'''
* [[Media:tek_type_535_fcp_low-sn.pdf|Tektronix 535 Factory Calibration Guide low-sn (PDF, OCR)]]
* [[Media:tek_type_535_fcp_low-sn.pdf|Tektronix 535 Factory Calibration Guide low-sn]] (OCR)
* [[Media:tek_type_535_fcp_high-sn.pdf|Tektronix 535 Factory Calibration Guide high-sn (PDF, OCR)]]
* [[Media:tek_type_535_fcp_high-sn.pdf|Tektronix 535 Factory Calibration Guide high-sn]] (OCR)
* [[Media:tek_type_535a_fcp.pdf|Tektronix 535A Factory Calibration Guide, August 1959 (PDF, OCR)]]
* [[Media:tek_type_535a_fcp.pdf|Tektronix 535A Factory Calibration Guide, August 1959]] (OCR)
* [[Media:Tek 535a fcp march 1968.pdf|Tektronix 535A Factory Calibration Procedure, March 1968 (PDF, needs OCR)]]
* [[Media:Tek 535a fcp march 1968.pdf|Tektronix 535A Factory Calibration Procedure, March 1968]] (needs OCR)
</small>
</small>
}}
}}
The '''Tektronix Type 535''' is a 10*/15 MHz oscilloscope that accepts [[letter-series and 1-series plug-ins]].
The '''Tektronix Type 535''' is a 10*/15 MHz oscilloscope that accepts [[letter-series and 1-series plug-ins]].


There are two timebases, and triggering is done with a Schmitt trigger made of a [[6U8]] tube (in
The 535 is functionally the same as the 30-MHz [[545]], but with a simpler, non-distributed vertical amplifier.
early instruments) or a [[6DJ8]] tube (in late instruments).
The delaying timebase on the 535 (non-A) supports delays up to 100 milliseconds.
The 535-S1 supports delays up to 1 second.
The 535A supports delays up to 10 seconds.
 
The 535 is functionally the same as a [[545]], but with a simpler, non-distributed vertical amplifier.
Early 535s came in brown, square-cornered cabinets; in 1956 the cabinet became blue and round-cornered.
Early 535s came in brown, square-cornered cabinets; in 1956 the cabinet became blue and round-cornered.
Early 535s had [[selenium rectifiers]].  The 535 has a [[thermal cutoff]].


Type 535, the single-timebase Type [[531]], and the first four plug-ins, Types 53[[A]], 53[[B]], 53[[C]], and 53[[D]],
Type 535, the single-timebase Type [[531]], and the first four plug-ins, Types 53[[A]], 53[[B]], 53[[C]], and 53[[D]],
were [[introduced in 1954|introduced in August 1954]], advertised as ''"... the &laquo;convertibles&raquo; of the Tektronix line"''.
were [[introduced in 1954|introduced in August 1954]], advertised as ''"... the «convertibles» of the Tektronix line"''.
Types [[541]] and [[545]] [[introduced_in_1955|came out in March 1955]].
Types [[541]] and [[545]] [[introduced_in_1955|came out in March 1955]].
The 535's CRT is Tektronix part number [[154-081]].


In 1959, Types [[531]], 535, [[541]], and [[545]] were superseded by Types 531A, 535A, 541A, and 545A, which have more convenient controls.   
In 1959, Types [[531]], 535, [[541]], and [[545]] were superseded by Types 531A, 535A, 541A, and 545A, which have more convenient controls.   
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The first 535s had brown slide-out cases, then blue slide-out cases, and finally blue cases with pop-off sides.   
The first 535s had brown slide-out cases, then blue slide-out cases, and finally blue cases with pop-off sides.   


From the [http://www.wellenkino.de/manuals/1959SC.pdf October 1959 issue of TekScope]:
The 535 has two timebases, with the delaying timebase on the 535 (non-A) supporting delays up to 100 milliseconds.
The 535-S1 supports delays up to 1 second, the 535A up to 10 seconds.
 
From [[Media:Service_Scope_01_Oct_1959.pdf|ServiceScope No.1, October 1959]]:
<blockquote>
<blockquote>
In Type 535 and 545 the total delaying sweep time is limited to 10 ms/cm.
In Type 535 and 545 the total delaying sweep time is limited to 10 ms/cm.
If a total delaying sweep time in excess of 10 ms/cm is required, a  
If a total delaying sweep time in excess of 10 ms/cm is required, a K535-S1 modification kit (Tek #040-063) which gives a maximum delay sweep range of 1 s/cm.  
K535-S1 modification kit (Tek #040-063) which gives a maximum delay sweep  
This kit is available for $40.00 in including a new front panel.
range of 1 s/cm. This kit is available for $40.00 in including a new  
front panel.
</blockquote>
</blockquote>


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{{Spec | Cooling  | AC Fan }}
{{Spec | Cooling  | AC Fan }}
{{Spec | Trigger Modes | AC/DC/AC LF Reject, and HF Sync}}
{{Spec | Trigger Modes | AC/DC/AC LF Reject, and HF Sync}}
{{Spec | Anode Potential | 10 kV}}
{{Spec | CRT | early models, [[5BG]]P2, part number [[154-081]]; late models, [[T51]]; 10 kV acceleration, 6 cm × 10 cm screen}}
{{Spec | Screen Area | 6 cm × 10 cm}}
{{Spec | Construction  | Aluminum alloy chassis. Anodized front panel}}
{{Spec | Construction  | Aluminum alloy chassis. Anodized front panel}}
{{Spec | Weight| 65 lbs / 29,5 kg }}
{{Spec | Weight| 65 lbs / 29.5 kg }}
{{EndSpecs}}
{{EndSpecs}}


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==Internals==
==Internals==
Triggering is done with a Schmitt trigger made of a [[6U8]] tube (in early instruments) or a [[6DJ8]] tube (in late instruments).
Early 535s had [[selenium rectifiers]].  The 535 has a [[thermal cutoff]].


===Power Supply===
===Power Supply===
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The 535's power supply provides regulated outputs of −150V, +100V, +225V, +350V, +500V as well as a +325 V unregulated output for CRT HV section.
The 535's power supply provides regulated outputs of −150V, +100V, +225V, +350V, +500V as well as a +325 V unregulated output for CRT HV section.


The Power supply section is very similar to a [[549]]. It is an all tube design using the following types
The Power supply section is very similar to a [[549]]. It is an all tube design using  
 
: [[5651]] as Voltage reference
 
: [[12AX7]] as comparator
[[5651]] as Voltage reference <br>
: [[12B4]] as -150V series pass element
[[12AX7]] as comparator <br>
: [[6080]] as +100V, +225V and  +350V series pass element
[[12B4]] as -150V series pass element<br>
: [[12B4]] as +500V series pass element
[[6080]] as +100V, +225V and  +350V series pass element<br>
: [[6AU6]] as error amplifier for all rails
[[12B4]] as +500V series pass element<br>
[[6AU6]] as error amplifier for all rails<br>


==Links==
==Links==


* [http://richardsears.wordpress.com/2011/06/18/tektronix-and-early-hewlett-packard/ Comparison of Tektronix 535, 535A, and HP 150A] with detailed pictures
* [https://richardsears.wordpress.com/2011/06/18/tektronix-and-early-hewlett-packard/ Comparison of Tektronix 535, 535A, and HP 150A] with detailed pictures
* [http://www.lydecker.org/Tektronix_535A.htm Tektronix 535A - Restoring a Swap Meet Find]
* [[120-086]] Power transformer schematic
* [[120-086]] Power transformer schematic
<!-- dead link 2023-03-27 * [http://www.lydecker.org/Tektronix_535A.htm Tektronix 535A - Restoring a Swap Meet Find] -->


==Pictures==
==Pictures==
Retrieved from "https://w140.com/tekwiki/wiki/Special:MobileDiff/80869"

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