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{{Oscilloscope Sidebar |
{{Oscilloscope Sidebar
title=Tektronix 535 |
|manufacturer=Tektronix
summary=10 MHz dual-timebase scope |
|series=500-series scopes
image=Tek-535a-crop.jpg |
|model=535  
caption=Tektronix 535A front |
|summary=10 (15) MHz dual-timebase scope  
introduced=1954 |
|image=Tek-535a-crop.jpg  
discontinued=1973 |
|caption=Tektronix 535A front  
manuals=
|introduced=1954  
* [http://exodus.poly.edu/~kurt/mmm/tek-535.pdf Tektronix 535 Manual (66 MB, PDF)]
|discontinued=1973  
* [http://exodus.poly.edu/~kurt/mmm/tek-535a.pdf Tektronix 535A Manual (114 MB, PDF)]
|designers=Dick Rhiger
* [http://w140.com/tek_535a_compact.pdf Tektronix 535A Manual (20 MB, PDF)]
|manuals=
* [http://w140.com/535_545_operators_handbook.pdf Tektronix 535 and 545 Operators Handbook (PDF)]
'''535'''
* [http://w140.com/tek_fcp/tek_type_535_early_factory_cal_proc.pdf Tektronix 535 Factory Calibration Guide low-sn (PDF)]
* [[Media:070-198.pdf    | Tektronix 535 Manual]]
* [http://w140.com/tek_fcp/tek_type_535_late_factory_cal_proc.pdf Tektronix 535 Factory Calibration Guide high-sn (PDF)]
* [[Media:tek_type_535_545_operators_handbook.pdf|Tektronix 535 and 545 Operators Handbook]] (OCR)
* [http://w140.com/tek_fcp/tek_type_535a_factory_cal_proc.pdf Tektronix 535A Factory Calibration Guide (PDF)]
* [[Media:tek_type_535_modification_summary.pdf|Tektronix 535 Modification Summary]] (bad-OCR)
* [http://w140.com/tek_535_modification_summary.pdf Tektronix 535 Modification Summary (PDF)]
* [[Media:navair_17-20aw-08_manual.pdf|Navair 17-20AW-08 Manual, which discusses the 535]] (OCR)
* [http://w140.com/navair_17-20aw-08.pdf Navair 17-20AW-08 Manual, which discusses the 535 (PDF)]
'''535A'''
* [[Media:070-0145-01.pdf | Tektronix 535A Manual]] (OCR)
* [[Media:Using your 535A or 545A.pdf|Using your 535A or 545A (1960)]]
* [[Media:Operators Handbook 535A 545A 1959.pdf|Tektronix 535A and 545A Operator's Handbook 1959]]
<small>
'''Calibration'''
* [[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]] (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]] (OCR)
</small>
}}
}}
The '''Tektronix Type 535''' is a 10*/15 MHz dual-timebase oscilloscope that accepts [[letter-series and 1-series plug-ins]].


The '''Tektronix Type 535''' is a 10 MHz* oscilloscope that accepts [[letter-series and 1-series plug-ins]].
The 535 is functionally the same as the 30-MHz [[545]], but with a simpler, non-distributed vertical amplifier.
 
There are two timebases, and triggering is done with a Schmitt trigger made of a [[6U8]] tube (in
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]],  
Type 535, the single-timebase Type [[531]], and the first four plug-ins, Types 53[[A]], 53[[B]], 53[[C]], and 53[[D]],
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 «convertibles» of the Tektronix line"''.
were [[introduced in 1954|introduced in August 1954]],  
advertised as ''"... the &laquo;convertibles&raquo; 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 addition, Types 531A and 535A have slightly faster (15 MHz vs. 11 MHz) vertical amplifiers.


In 1959, Types [[531]], 535, [[541]], and [[545]] were superseded by
There is also a rack-mount version, Types RM35 and RM35A.   
Types 531A, 535A, 541A, and 545A, which have more convenient controls.   
In addition, Types 531A and 535A have slightly faster (15 MHz vs. 11 MHz) vertical amplifiers.


There is a rack-mount version, Types RM35 and RM35A.  Starting in 1963, the 535A was
Starting in 1963, the 535A was made with [[BNC connector]]s for the external trigger inputs.   
made with [[BNC connector]]s for the external trigger inputs.  Prior to 1963, the external  
Prior to 1963, the external trigger inputs used [[UHF connector]]s.   
trigger inputs used [[UHF connector]]s.  1972 was the last year that any version of the 535 was sold.  
1972 was the last year that any version of the 535 was sold.  
In 1973, the 54x series was still available, but nothing from the 53x series.  
In 1973, the 54x series was still available, but nothing from the 53x series.  


The first 535s had brown slide-out cases, then blue slide-out cases, and finally
The first 535s had brown slide-out cases, then blue slide-out cases, and finally blue cases with pop-off sides.   
blue cases with pop-off sides.   


From the [http://www.wellenkino.de/manuals/1959SC.pdf October 1959 issue of TekScope]:
<nowiki>*</nowiki> With Type [[A]] or [[B]] plug-in; 11 MHz with Type [[K]] or other fast plug-in.
 
{{BeginSpecs}}
{{SpecGroup | 535 SN 101-8627: Double-terminated delay line}}
{{Spec | Bandwidth | DC to 10 MHz (≤ 3 dB) with [[A|Type A plug-in]]  }}
{{Spec | Rise time | 0.035 μs }}
{{SpecGroup | 535 SN 8268 up  & 535A: Single-terminated delay line}}
{{Spec | Bandwidth | DC to 15 MHz (≤ 3 dB) with [[K|Type K plug-in]]  }}
{{Spec | Rise time | 0.024 μs }}
{{SpecGroup | all}}
{{Spec | Line Voltage | 108/115/122/216/244 V<sub>AC</sub> ±10%,selected via primary voltage selector and voltage range selector switches, 50 Hz to 60 Hz. }}
{{Spec | Thermal Protection | Automatic resetting thermal cutout, in case internal temperature exceeds safe operating level }}
{{Spec | Power Consumption | 500 W with [[CA|Type CA plug-in]] }}
{{Spec | Cooling  | AC Fan }}
{{Spec | Trigger Modes | AC/DC/AC LF Reject, and HF Sync}}
{{Spec | CRT | early models, [[5BG]]P2, part number [[154-081]]; late models, [[T51]]; 10 kV acceleration, 6 cm × 10 cm screen}}
{{Spec | Construction  | Aluminum alloy chassis. Anodized front panel}}
{{Spec | Weight| 65 lbs / 29.5 kg }}
{{EndSpecs}}
 
==Links==
{{Documents|Link=535}}
{{Documents|Link=535A}}
 
==Special Models==
Three "special models" of 535 were made:
* 535-S1 (sweep delay 10 microseconds to 1 second)
* 535-S2 (sweep delay 100 microseconds to 10 seconds)
* 535-S6 (sweep delay 1.5 microseconds to 10 seconds)
 
The delaying timebase on the standard non-A 535 supports 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>


<nowiki>*</nowiki> With Type [[A]] or [[B]] plug-in; 11 MHz with Type [[K]] or other fast plug-in.
==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===


==Specifications==
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.


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


==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
<!-- dead link 2023-03-27 * [http://www.lydecker.org/Tektronix_535A.htm Tektronix 535A - Restoring a Swap Meet Find] -->


==Pictures==
==Pictures==
 
===535===
<gallery>
Tek 535 brown 1.jpg|535 with brown case
Tek 535 brown 2.jpg|535 with brown case
Tek 535 brown 3.jpg|535 with brown case
Tek 535 brown 4.jpg|535 with brown case
Tek 535 brown 5.jpg|535 with brown case
</gallery>
===RM 35===
<gallery>
Tek rm35.jpg
Tek rm35 2.jpg
Tek rm35 3.jpg
Tek rm35 4.jpg
</gallery>
===535 S1===
<gallery>
<gallery>
535A.jpg|535A
Rm35a front.jpg|R35A front
Rm35a trig panel.jpg|R35A trigger controls
535_vertical2.png|vertical amplifier
Wellenkino 535a 3.jpg
Wellenkino 535a 2.jpg
1.TEK535.JPG|535 S1
1.TEK535.JPG|535 S1
2.TEK535.JPG|535 S1
2.TEK535.JPG|535 S1
Line 86: Line 136:
6.TEK535.JPG|535 S1
6.TEK535.JPG|535 S1
7.TEK535.JPG|535 S1
7.TEK535.JPG|535 S1
</gallery>
===535 S2===
<gallery>
Tek 535-s2 1.jpg|535-S2
Tek 535-s2 2.jpg|535-S2
Tek 535-s2 3.jpg|535-S2
</gallery>
===535A===
<gallery>
535A.jpg|535A
535_vertical2.png|vertical amplifier
Wellenkino 535a 3.jpg
Wellenkino 535a 2.jpg
Tek 535a delay line 1.jpg|535A delay line
Tek 535a delay line 2.jpg|535A delay line
Tek 535a trace.jpg|535A trace
Tek 535a on plastic.jpg|535A
</gallery>
====535A Internals====
<gallery>
Tek_535A-LHS.jpeg | LHS
Tek_535A-RHS.jpeg | RHS
Tek_535A-RHS1.jpeg | RHS
Tek_535A-top.jpeg | Top (without HV Shields)
Tek_535A-Underside.jpeg | Underside
</gallery>
===RM35A===
<gallery>
Tek rm35a 1.JPG
Tek rm35a 1.JPG
Tek rm35a 2.jpg
Tek rm35a 2.jpg
Line 104: Line 184:
Tek rm35a 17.jpg
Tek rm35a 17.jpg
Tek rm35a 18.jpg
Tek rm35a 18.jpg
Tek 535a delay line 1.jpg|535A delay line
Rm35a front.jpg|R35A front
Tek 535a delay line 2.jpg|535A delay line
Rm35a trig panel.jpg|R35A trigger controls
Tek 535a trace.jpg|535A trace
Tek-RM35A-HV-Section.jpg | RM35A HV Section
Tek 535 brown 1.jpg|535 with brown case
Tek-RM35A-A-Inten-B.jpg | RM35A B intensified by A Trace
Tek 535 brown 2.jpg|535 with brown case
Tek-RM35A-Inside-Live.jpg |RM35A Internals
Tek 535 brown 3.jpg|535 with brown case
Tek-RM35A-Live-Tubes.jpg |RM35A Internals
Tek 535 brown 4.jpg|535 with brown case
Tek rm35a trace.jpg|RM35A trace
Tek 535 brown 5.jpg|535 with brown case
Tek rm35a rear2.jpg|RM35A rear
Tek 535a on plastic.jpg|535A
Tek rm35a rear.jpg|RM35A rear
</gallery>
===RM35AR===
<gallery>
Tek rm35ar 1.jpg|RM35AR (mod 116B)
Tek rm35ar 1.jpg|RM35AR (mod 116B)
Tek rm35ar 2.jpg|RM35AR (mod 116B)
Tek rm35ar 2.jpg|RM35AR (mod 116B)
Line 118: Line 201:
Tek rm35ar 4.jpg|RM35AR (mod 116B)
Tek rm35ar 4.jpg|RM35AR (mod 116B)
Tek rm35ar 5.jpg|RM35AR (mod 116B)
Tek rm35ar 5.jpg|RM35AR (mod 116B)
Tek-RM35A-CRT-1.jpg | RM35A CRT
Tek-RM35A-CRT-2.jpg | RM35A CRT
Tek-RM35A-CRT-DefPlates.jpg | RM35A CRT Deflection Plates
Tek-RM35A-HV-Section.jpg |  RM35A HV Section - Cover Removed
Tek-RM35A-A-Inten-B.jpg | RM35A B intensified by A Trace
Tek-RM35A-Inside-Live.jpg | Inside a Live and working  RM35A
Tek-RM35A-Live-Tubes.jpg | Inside a Live and working  RM35A
</gallery>
</gallery>
{{Parts|535}}
{{Parts|535A}}
{{Parts|RM35}}
{{Parts|RM35A}}




[[Category:500 series scopes]]
[[Category:500 series scopes]]
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