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The Tektronix 560 is a scope [[introduced in 1961]] which uses 50 and 60 series plug-ins | {{Oscilloscope Sidebar | | ||
title=Tektronix 560 | | |||
summary=1 MHz scope | | |||
image=Tek 560 1.jpeg | | |||
caption=Tektronix 567 front | | |||
introduced=1961 | | |||
discontinued=1962 | | |||
* [http://w140.com/tek_560_ocr.pdf Tektronix 560 Manual (OCR, PDF)] | |||
* [http://w140.com/tek_560_560_product_release.pdf Tektronix 560 and 561 Product Release (PDF)] | |||
manuals= | |||
}} | |||
The '''Tektronix 560''' is a scope [[introduced in 1961]] which uses 50 and 60 series plug-ins | |||
for both the vertical and horizontal deflection. | for both the vertical and horizontal deflection. | ||
It is the first of the [[560-series scopes]], which contain no amplifier stages, | It is the first of the [[560-series scopes]], which contain no amplifier stages, | ||
requiring the plug-ins to directly drive the CRT deflection plates. | requiring the plug-ins to directly drive the CRT deflection plates. | ||
While promoted by Tek as having the advantage of | While promoted by Tek as having the advantage of | ||
“not limited by additional circuitry between the plug-in and the deflection plates”, | ''“not limited by additional circuitry between the plug-in and the deflection plates”'', | ||
this configuration has | this configuration has the significant disadvantage that | ||
gain or sweep need to be calibrated individually each time | |||
a plug-in is swapped to even get crude accuracy, as the raw | |||
deflection factor of the CRT varies to a relatively large | |||
degree between units, and the mainframe has no circuitry to normalize | |||
this difference. | |||
It may be for this reason that Tektronix referred to the 560 | |||
series mainframes as “indicators” rather than oscilloscopes. | |||
In scopes that have amplifiers in the mainframe, this step can be skipped, | |||
as doing so only tunes the accuracy to a small amount of additional precision. | as doing so only tunes the accuracy to a small amount of additional precision. | ||
The only circuit in the 560 apart from the CRT circuits and | |||
power supply is a voltage/timing calibrator. | |||
The 560 was introduced along with the similar [[561]] in 1961. | The 560 was introduced along with the similar [[561]] in 1961. | ||
A rack model was never offered. | A rack model was never offered. | ||
Both of the mainframes use conventional 5” round CRTs | Both of the mainframes use conventional 5” round CRTs with glass envelopes. | ||
The maximum system bandwidth of the 560 is 1 MHz. | The maximum system bandwidth of the 560 is 1 MHz. | ||
The 561 also supports the 70 series plug-ins | |||
Certain members of the 70 series vertical amplifiers give a system bandwidth in the 561 | The 561 also supports the 70 series plug-ins which are not compatible with the 560. | ||
Certain members of the 70 series vertical amplifiers give a system bandwidth of 4 MHz in the 561. | |||
The later 2 and 3 series plug-ins can not be used in the 560 or 561, as they consume more power. | The later 2 and 3 series plug-ins can not be used in the 560 or 561, as they consume more power. | ||
The 560 and 561 were short lived | The 560 and 561 were short-lived. Both were replaced by the 561A, which offered | ||
several performance improvements, within less than a year. | |||
which offered several performance improvements. | |||
==Specifications== | |||
[[Category:Specifications needed]]''please add'' | |||
==Pictures== | |||
<gallery> | <gallery> | ||
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[[Category:560 series scopes]] | [[Category:560 series scopes]] | ||