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The 568 is a an oscilloscope [[introduced in 1967]] that takes 3-series plug-ins.  It was intended to be used for sampling, typically with a [[230]] digital unit.
{{Oscilloscope Sidebar
Like the [[561]] and [[564]], the 568 does not contain vertical or horizontal amplifiers. The plug-ins directly drive the deflection plates. The 568 has multipin connectors on its rear panel
|manufacturer=Tektronix
that are routed to multipin connectors on the plug-ins. This is to support external control
|series=560-series scopes
and measurement using, for example, a 230.
|model=568
|summary=Sampling scope
|image=568_1.JPG
|caption=Tektronix 568 front, with [[3S6]] and [[3T6]] plugins
|introduced=1967
|discontinued=1987
|designers=
|manuals=
* [[Media:070-0596-00.pdf|Tektronix 568 Manual]]<small><br />Alternate: [http://bama.edebris.com/download/tek/568/568.djvu DjVu @ BAMA]</small>
* [[Media:Tek readout oscilloscopes 1968 catalog.pdf|"Digital Readout Introduction" in 1968 Catalog]]
* [[Media:Tek 568 fcp jan 1967.pdf]]
}}
The '''Tektronix 568''' is a [[sampling oscilloscope]], [[introduced in 1967]], which takes 3S- and 3T-series plug-ins.   
Although it was intended to be used for sampling,
it can also be used with non-sampling plug-ins of the 3A and 3B series.
 
Like the [[561]] and [[564]], the 568 does not contain vertical or horizontal amplifiers.
The plug-ins directly drive the deflection plates.
The 568 has multi-pin connectors on its rear panel that are routed to multi-pin connectors on the plug-ins.
This is to support external control and measurement using, for example, a [[230]] and [[241]].
The typical cable for connecting the [[568]] to the [[230]] is the [[012-0119-01]].
 
Two sampling heads can be interfaced directly to the 568 using the [[012-0130-00]] cable, or
multiple sampling heads can be interfaced using an multiplexer such as the [[286]], [[287]],
or [[R288]].
 
CRT was the [[T5032]]-2-1 ([[154-0454-00]]) or [[T5611]]-2-1 ([[154-0613-01]]).
 
The 568 was distributed as a self-contained instrument and also
as a component of integrated test and measurement systems
such as the [[S-3100]].
As a part of the test and measurement systems,
the 568 was sold at least until 1986.
 
A modification, 708P, was available for the 568 to give it a head multiplexer instead of a CRT. Head multiplexer is similar with [[286]]
 
{{BeginSpecs}}
{{Spec | Bandwidth            | sampling, DC to  14,5 GHz (with [[3S2]] and [[S-4]] head, may vary with other plug-ins);<br />realtime, DC to 15 MHz (with [[3A5]], may vary with other plug-ins)  }}
{{Spec | Rise time            | sampling, 25 ps;<br />realtime, 24 ns }}
{{Spec | Acceleration voltage | 3.5 kV}}
{{Spec | Screen Area          | 8 cm × 10 cm  }}
{{Spec | Calibrator          | 0.5 V , 5 V (p-p) into 1 MΩ, 50mV, 0.5 V (p-p) into 50 Ω, selectable 1 kHz( -50 % / +100%)and 100 kHz (0.05 %), ( Serial B150629 below  20 kHz instead 100 kHz)}}
{{Spec | Screen Area          | 8 cm × 10 cm  }}
{{Spec | Power                | 100/115/124/200/230/248 V<sub>AC</sub> ±10%, selected via primary voltage selector and voltage range selector switches, 48 Hz to 66 Hz; max 210 W with plug-ins }}
{{Spec | Thermal Protection  | Automatic resetting thermal cutout, in case internal temperature exceeds safe operating level }}
{{Spec | Construction        | Aluminum alloy chassis. Anodized front panel}}
{{EndSpecs}}
 
==Links==
* [http://www.museum-nt.de/objekte/tek_568.html Tek 568 @ museum-nt.de]
{{Documents|Link=568}}
 
==Pictures==
 
<gallery>
568_1.JPG            |568  front
230_568_0.JPG        |230 and 568 measuring risetime
568_rear.JPG          |568 rear 
568_i_top.JPG        |568 top inside
568_i_bot.JPG        |568 bottom inside
568 708p front.jpg    |568 Mod 708P front
568 708p switching.jpg|568 Mod 708P head multiplexer circuitry
568 708p rear.jpg    |568 Mod 708P rear
</gallery>
 
 
[[Category:560 series scopes]]
[[Category:Sampling scopes]]

Revision as of 07:32, 22 December 2023

Tektronix 568
Sampling scope
Tektronix 568 front, with 3S6 and 3T6 plugins

Produced from 1967 to 1987

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix 568 is a sampling oscilloscope, introduced in 1967, which takes 3S- and 3T-series plug-ins. Although it was intended to be used for sampling, it can also be used with non-sampling plug-ins of the 3A and 3B series.

Like the 561 and 564, the 568 does not contain vertical or horizontal amplifiers. The plug-ins directly drive the deflection plates. The 568 has multi-pin connectors on its rear panel that are routed to multi-pin connectors on the plug-ins. This is to support external control and measurement using, for example, a 230 and 241. The typical cable for connecting the 568 to the 230 is the 012-0119-01.

Two sampling heads can be interfaced directly to the 568 using the 012-0130-00 cable, or multiple sampling heads can be interfaced using an multiplexer such as the 286, 287, or R288.

CRT was the T5032-2-1 (154-0454-00) or T5611-2-1 (154-0613-01).

The 568 was distributed as a self-contained instrument and also as a component of integrated test and measurement systems such as the S-3100. As a part of the test and measurement systems, the 568 was sold at least until 1986.

A modification, 708P, was available for the 568 to give it a head multiplexer instead of a CRT. Head multiplexer is similar with 286

Key Specifications

Bandwidth sampling, DC to 14,5 GHz (with 3S2 and S-4 head, may vary with other plug-ins);
realtime, DC to 15 MHz (with 3A5, may vary with other plug-ins)
Rise time sampling, 25 ps;
realtime, 24 ns
Acceleration voltage 3.5 kV
Screen Area 8 cm × 10 cm
Calibrator 0.5 V , 5 V (p-p) into 1 MΩ, 50mV, 0.5 V (p-p) into 50 Ω, selectable 1 kHz( -50 % / +100%)and 100 kHz (0.05 %), ( Serial B150629 below 20 kHz instead 100 kHz)
Screen Area 8 cm × 10 cm
Power 100/115/124/200/230/248 VAC ±10%, selected via primary voltage selector and voltage range selector switches, 48 Hz to 66 Hz; max 210 W with plug-ins
Thermal Protection Automatic resetting thermal cutout, in case internal temperature exceeds safe operating level
Construction Aluminum alloy chassis. Anodized front panel

Links

Documents Referencing 568

Document Class Title Authors Year Links
Service Scope 43 Apr 1967.pdf Article New From Tektronix, Inc. In 1967 1967 568 • 230 • 454 • 647A • C-40 • 1A4 • 1A5 • 3L5 • 200-1
Service Scope 53 Dec 1968.pdf Article Digital Systems Come Of Age John Bowne 1968 3T5 • 3T6 • 3S5 • 3S6 • S-1 • S-2 • S-3 • S-4 • 568 • 230
Service scope dec 1968 ocr.pdf Article Digital Systems Come of Age John Bowne 1968 3T5 • 3T6 • 3S5 • 3S6 • S-1 • S-2 • S-3 • S-4 • 568 • 230 • 240 • 241 • 250
Service Scope 52 Oct 1968.pdf Article The State of the Art in Sampling Al Zimmerman 1968 S-1 • S-2 • S-3 • S-4 • S-50 • S-51 • 285 • 3S1 • 3S2 • 3S5 • 3S6 • 3T2 • 3T5 • 3T6 • 3T77A • 568 • 230
Tekscope 1970 V2 N4 Aug 1970.pdf Article Automated Measurement Systems 1970 S-3150 • 568 • 230 • S-3110 • 241 • 240
Tekscope 1971 V3 N1 Jan 1971.pdf Article Short Pulse Technique of Adjusting Wideband Amplifiers Carl Battjes 1971 7A16 • 109 • 568 • 230
Tekscope 1971 V3 N5 Sep 1971.pdf Article The R1340 Data Coupler 1971 R1340 • 568 • 3S6 • 3T6

Pictures

  • 568 front

    568 front

  • 230 and 568 measuring risetime

    230 and 568 measuring risetime

  • 568 rear

    568 rear

  • 568 top inside

    568 top inside

  • 568 bottom inside

    568 bottom inside

  • 568 Mod 708P front

    568 Mod 708P front

  • 568 Mod 708P head multiplexer circuitry

    568 Mod 708P head multiplexer circuitry

  • 568 Mod 708P rear

    568 Mod 708P rear

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