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 | Image:567 front.jpg | [[567|567 - Sampling scope with digital readout]] | ||
Image: | 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]] - | Image:3t7 front.JPG | [[3T7]] - sampling timebase and pulser | ||
</gallery> | </gallery> | ||
[[Category:560 series scopes]] | [[Category:560 series scopes]] | ||
Revision as of 10:16, 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
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3A1S - 25 MHz vertical amplifier
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3A7 - differential amplifier
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3A74 - four-channel vertical plug-in
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3A9 - 1 MHz differential amplifier
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3B1S - timebase plug-in
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3L5 - 1 MHz spectrum analyzer
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3S1 - dual-trace sampling plug-in
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3S3 - sampling plug-in
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3S7 - sampling plug-in
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3S76 - dual-trace sampling plug-in
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3T7 - sampling timebase and pulser
