560-series scopes: Difference between revisions

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==560 series scopes==
==560 series scopes==
<gallery>
<gallery>
Image:Tek 560 1.jpeg    | [[560]]
Image:Tek 560 1.jpeg    | [[560|560 - Basic mainframe]]
Image:Tek 561s.jpg      | [[561]]
Image:Tek 561s.jpg      | [[561|561]]
Image:Tek 564b 1.JPG    | [[564]]
Image:Tek 564b 1.JPG    | [[564|564 - Storage scope]]
Image:Image needed.jpg  | [[565]]
Image:Image needed.jpg  | [[565|565 - dual-beam scope, two plug-ins; built-in trigger, sweep, and horizontal amplifier]]
Image:567 front.jpg      | [[567]] - Sampling scope with digital readout
Image:567 front.jpg      | [[567|567 - Sampling scope with digital readout]]
Image:568 708p front.jpg | [[568]]
Image:Image needed.jpg   | [[568|568 - Sampling scope]]
</gallery>
</gallery>


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Image:3s7 front.JPG      | [[3S7]] - sampling plug-in  
Image:3s7 front.JPG      | [[3S7]] - sampling plug-in  
Image:Tek 3s76 front.jpg  | [[3S76]] - dual-trace sampling plug-in  
Image:Tek 3s76 front.jpg  | [[3S76]] - dual-trace sampling plug-in  
Image:3t7 front.JPG      | [[3T7]] - sapmpling timebase and pulser
Image:3t7 front.JPG      | [[3T7]] - sampling timebase and pulser
</gallery>
</gallery>


[[Category:560 series scopes]]
[[Category:560 series scopes]]

Revision as of 11:16, 25 June 2014

The 560 series scopes which were introduced with the 560 and 561 in 1961 were tube scopes that began to introduce some solid state circuitry.

They use 2-series or 3-series vertical plug-ins and 2-series or 3-series horizontal plug-ins (exception: 560 only takes 2-series because of weak power supply).

560-series mainframes contain no amplifier stages, requiring the plug-ins to drive the CRT deflection plates directly. While promoted by Tek as having the advantage of “not limited by additional circuitry between the plug-in and the deflection plates”, this configuration has a significant disadvantage in that when swapping plug-ins, gain or sweep have to be calibrated.

In scopes with amplifiers in the mainframe, touching up the gain or sweep cal when swapping plug-ins can be skipped, as doing so only tunes the accuracy to a small amount of additional precision. In the 560 series however, this step is required to even get crude accuracy, as the raw deflection factor of the CRT has a relatively large range, and the mainframe has no circuitry to normalize it.

To maintain good phase match over a wide range of frequency, the mainframe does not contain a delay line in the vertical path. The faster vertical plug-ins contain the delay line, which limits the available volume for amplifier circuitry.

560 series scopes

560 series plugins