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(New page: * [http://bama.edebris.com/download/tek/533/Tek533A.pdf Tektronix 533 and 533A Manual (PDF)])
 
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* [http://bama.edebris.com/download/tek/533/Tek533A.pdf Tektronix 533 and 533A Manual (PDF)]
{{Oscilloscope Sidebar
|manufacturer=Tektronix
|series=500-series scopes
|model=533
|summary=15 MHz oscilloscope
|image=Wellenkino 533a.jpg
|caption=Tektronix 533A front
|introduced=1958
|discontinued=1973
|designers=
|manuals=
* [[Media:070-258.pdf|533/533A Instruction]] (OCR, 30M)
* [[Media:tek_533a_catalog.pdf|533A in 1968 Catalog]] (OCR, 2M)
* [[Media:tek_type_533_fcp.pdf|533 Factory Calibration Procedure, September 1959]] (OCR)
* [[Media:Tek 533a fcp dec 1968.pdf|533A Factory Calibration Procedure, December 1968 (OCR)]]
* [[Media:Tek 533a fcp sep 1966.pdf|533A Factory Calibration Procedure, September 1966]] (OCR)
}}
The '''Tektronix Type 533''' is a 15 MHz oscilloscope [[introduced in 1958]] that uses [[letter-series and 1-series plug-ins]].
 
It is similar to a [[535]], but without the second, delayed timebase.
Instead, it has a range of horizontal magnifiers from ×2 to ×100.
 
There is also a rack-mount version, the RM33.
Later 533A have [[BNC connector]]s.
The standard CRT for the 533 and 533A is the [[T5330|T5330-2]].
The difference between the 533 and 533A is only the trigger mode.
 
{{BeginSpecs}}
{{Spec | Bandwidth | DC to 15 MHz (≤ 3 dB) with [[K|Type K plug-in]]  }}
{{Spec | Rise time | 0.024 μs }}
{{Spec | Line Voltage | 108/115/122/216/230/244 V<sub>AC</sub> ±10%, selected via soldering wire on transformer, 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| CA plug-in]] }}
{{Spec | Cooling  | AC Fan }}
{{Spec | Trigger Modes (533)| AC/DC/AC Slow, and HF Sync}}
{{Spec | Trigger Modes (533A)| AC/DC/AC LF Reject, and HF Sync}}
{{Spec | Anode Potential | 10 kV}}
{{Spec | Screen Area | 6 cm × 10 cm}}
{{Spec | Construction  | Aluminum alloy chassis. Anodized front panel}}
{{Spec | Weight| 61.5 lbs / 27.8 kg }}
{{EndSpecs}}
 
==Internals==
The vertical amplifier consists of a [[12BY7]] differential amplifier followed
by a [[6DJ8]] cathode-follower, followed by a [[6197]] differential (common-cathode)
output stage that drives the 200 ns L-C [[delay line]], which drives the vertical deflection
plates of the CRT.
 
Trigger pickoff is taken after the cathode follower stage in the vertical amplifier.
There is a 6DJ8 differential trigger pickoff amplifier followed by half of a 6DJ8 a cathode follower, buffering the trigger signal. 
 
The trigger circuit is a [[6DJ8]] trigger amplifier followed by a 6DJ8 Schmitt trigger.
Triggering can be from the internal pickoff or from an external signal, or "line" trigger via a 6.3 V tap on the power transformer.
 
The 533 contains a 53 °C (128 °F) [[thermal cutoff]].
The high voltages for the CRT, +8,650 V and −1,350 V, are generated by a 60 kHz Hartley power oscillator and five [[5642]] high-voltage rectifier diode tubes.
 
==Pictures==
===533===
<gallery>
Tek 533 sn315 4.jpg|533
Tek 533 sn315 3.jpg|533
Tek 533 sn315 2.jpg|533
Tek 533 sn315 1.jpg|533
<!--Tek 533 sn315 5.jpg|533-->
Tek 533 sn315 6.jpg|533
Tek 533 sn315 7.jpg|533
Tek 533 sn315 8.jpg|533
Tek 533 sn315 9.jpg|533
Tek 533 sn315 10.jpg|533
Tek 533 sn315 11.jpg|533
</gallery>
 
===533A===
<gallery>
2 533A.jpg| front from different 533A
Tek 533a front.jpg|533A front
Tek 533a rear.jpg|533A rear
Wellenkino 533a.jpg|533A
Tek 533a delay line 1.jpg|533A delay line
Tek 533a delay line 2.jpg|533A delay line
</gallery>
 
{{Parts|533}}
{{Parts|533A}}
 
[[Category:500 series scopes]]