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{{Oscilloscope Sidebar |
{{Oscilloscope Sidebar |
title=Tektronix 535 |
title=Tektronix 535 |
summary=10 MHz dual-timebase scope |
summary=10 (15) MHz dual-timebase scope |
image=Tek-535a-crop.jpg |
image=Tek-535a-crop.jpg |
caption=Tektronix 535A front |
caption=Tektronix 535A front |
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discontinued=1973 |
discontinued=1973 |
manuals=
manuals=
* [http://exodus.poly.edu/~kurt/mmm/tek-535.pdf Tektronix 535 Manual (66 MB, PDF)]
* [[Media:070-198.pdf | Tektronix 535 Manual (66 MB, PDF)]]
* [http://exodus.poly.edu/~kurt/mmm/tek-535a.pdf Tektronix 535A Manual (114 MB, PDF)]
* [[Media:070-0145-01.pdf | Tektronix 535A Manual (22 MB, OCR PDF)]]
* [http://w140.com/tek_535a_compact.pdf Tektronix 535A Manual (20 MB, PDF)]
* [[Media:tek_type_535_545_operators_handbook.pdf|Tektronix 535 and 545 Operators Handbook (PDF, OCR)]]
* [http://w140.com/535_545_operators_handbook.pdf Tektronix 535 and 545 Operators Handbook (PDF)]
* [[Media:tek_type_535_modification_summary.pdf|Tektronix 535 Modification Summary (PDF, OCR, bad-OCR)]]
* [http://w140.com/tek_fcp/tek_type_535_early_factory_cal_proc.pdf Tektronix 535 Factory Calibration Guide low-sn (PDF)]
* [[Media:navair_17-20aw-08_manual.pdf|Navair 17-20AW-08 Manual, which discusses the 535 (PDF, OCR)]]
* [http://w140.com/tek_fcp/tek_type_535_late_factory_cal_proc.pdf Tektronix 535 Factory Calibration Guide high-sn (PDF)]
<small>
* [http://w140.com/tek_fcp/tek_type_535a_factory_cal_proc.pdf Tektronix 535A Factory Calibration Guide (PDF)]
'''Calibration'''
* [http://w140.com/tek_535_modification_summary.pdf Tektronix 535 Modification Summary (PDF)]
* [http://w140.com/navair_17-20aw-08.pdf Navair 17-20AW-08 Manual, which discusses the 535 (PDF)]
 
* [[Media:tek_535a_manual.pdf|Tektronix 535A Manual (20 MB, PDF, OCR)]]
 
* [[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 (PDF, 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 (PDF, OCR)]]
* [[Media:tek_type_535a_fcp.pdf|Tektronix 535A Factory Calibration Guide (PDF, OCR)]]
* [[Media:tek_type_535a_fcp.pdf|Tektronix 535A Factory Calibration Guide, August 1959 (PDF, OCR)]]
* [[Media:tek_type_535_modification_summary.pdf|Tektronix 535 Modification Summary (PDF, OCR)]]
* [[Media:Tek 535a fcp march 1968.pdf|Tektronix 535A Factory Calibration Procedure, March 1968 (PDF, needs OCR)]]
* [[Media:navair_17-20aw-08_manual.pdf|Navair 17-20AW-08 Manual, which discusses the 535 (PDF, OCR)]]
</small>
}}
}}


The '''Tektronix Type 535''' is a 10 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
There are two timebases, and triggering is done with a Schmitt trigger made of a [[6U8]] tube (in
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{{BeginSpecs}}
{{BeginSpecs}}
{{Spec | Bandwidth | DC to 15 MHz (≤ 3 dB) with [[K|Type K plug-in]]  }}
{{SpecGroup | 535 SN 101-8627}}
{{Spec | Rise time | 0.024 μs }}
{{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}}
{{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 | 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 | Thermal Protection | Automatic resetting thermal cutout, in case internal temperature exceeds safe operating level }}
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{{Spec | Screen Area | 6 cm × 10 cm}}
{{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 }}
{{EndSpecs}}
{{EndSpecs}}
==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)


==Internals==
==Internals==
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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 a all Tube design with the using the following tubes
The Power supply section is very similar to a [[549]]. It is an all tube design using the following types


[[5651]] as  Voltage Reference Tube <br>
 
[[12AX7]] as comparator<br>
[[5651]] as  Voltage reference  <br>
[[12B4]] as  -150V Series Pass Tube<br>
[[12AX7]] as comparator <br>
[[6080]] as +100V, +225V and  +350V Series Pass Tube<br>
[[12B4]] as  -150V series pass element<br>
[[12B4]] as  +500V Series Pass Tube<br>
[[6080]] as +100V, +225V and  +350V series pass element<br>
[[6AU6]] as error Amplifier for all rails<br>
[[12B4]] as  +500V series pass element<br>
[[6AU6]] as error amplifier for all rails<br>


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


==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>
===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
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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>
===RM35A===
<gallery>
Tek rm35a 1.JPG
Tek rm35a 1.JPG
Tek rm35a 2.jpg
Tek rm35a 2.jpg
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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)
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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>


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