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{{ | {{Instrument Sidebar | ||
|class=Curve Tracer | |||
image=Tektronix-570-Outside-Front.jpg | | |manufacturer=Tektronix | ||
caption=Tektronix 570 front | | |model=570 | ||
introduced=1955 | | |summary=Curve tracer for tubes | ||
discontinued=(?) | | |image=Tektronix-570-Outside-Front.jpg | ||
|caption=Tektronix 570 front | |||
manuals= | |introduced=1955 | ||
* [ | |discontinued=(?) | ||
* [ | |designers=John Kobbe | ||
* [ | |manuals= | ||
* [ | * [[Media:070-167.pdf|Tektronix 570 Manual 070-167 (1955)]] (OCR) | ||
* [[Media:Tek 570 fcp feb 1964.pdf| | * [[Media:070-359.pdf|Tektronix 570 Manual 070-359 (1963)]] | ||
<!-- * [https://w140.com/mmm/tek-570.pdf Tektronix 570 Manual] (mediocre quality) --> | |||
<!-- * [https://w140.com/tek_fcp/tek_570_fac_cal.pdf 570 Factory Calibration Procedure 1959] --> | |||
<small> | |||
'''Calibration''' | |||
* [[Media:Tek 570 fcp.pdf|570 Factory Calibration Procedure 1959]] | |||
* [[Media:Tek 570 fcp feb 1964.pdf|570 Factory Calibration Procedure 1964]] | |||
</small> | |||
}} | }} | ||
The '''Tektronix 570''' is a curve tracer for tubes | The '''Tektronix 570''' was Tek's first curve tracer, [[introduced in 1955]]. It is a curve tracer for vacuum tubes. | ||
It sweeps the plate voltage between zero and a selectable maximum voltage | It sweeps the plate voltage between zero and a selectable maximum voltage while "stepping" the control grid through a set of voltages. | ||
while "stepping" the control grid through a set of voltages. | |||
A selectable screen voltage is available for testing tubes with screens. | A selectable screen voltage is available for testing tubes with screens. | ||
The plate voltage is measured and applied to the X-axis of the display. | The plate voltage is measured and applied to the X-axis of the display. | ||
Plate current is measured and amplified and is applied to the Y-axis of the display. | Plate current is measured and amplified and is applied to the Y-axis of the display. | ||
[[John Kobbe]] had a key role in the development of both the 570 and [[575]] curve tracers. [https://vintagetek.org/my-early-tektronix-days-by-john-kobbe-2/ He says]: | |||
<blockquote> | |||
While I was working on the [[541|540 series]] vertical amplifier, [[Virgil Briton]], whose bench was next to me, had put together a vacuum tube curve tracer using stepping relays and other mechanical devices. I remember thinking that, that was a neat display even if it did a lot clicking and was slow. | |||
After putting the cross hatch generator together, I knew it would be very easy to do the curve tracer electronically, it started for in house use, but after putting a self-contained instrument together, Tek decided to call it 570<ref>The original quote refers to the 575, however, the first curve tracer was the [[570]] in 1955; the [[541]] was released in 1955 as well, and the text continues to tell the [[575]] story. It follows that the instrument referenced is clearly the 570, not the 575, which was released in 1957.</ref> and sell it. | |||
</blockquote> | |||
{{MissingSpecs}} | {{MissingSpecs}} | ||
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* T620: transformer for 60 kHz HV power oscillator for CRT voltages | * T620: transformer for 60 kHz HV power oscillator for CRT voltages | ||
The screen supply is regulated and uses a [[6CD6GA]] tube as the series | The screen supply is regulated and uses a [[6CD6GA]] tube as the series regulator. | ||
regulator. | |||
The vertical and horizontal amplifiers are almost identical. | The vertical and horizontal amplifiers are almost identical. | ||
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A [[T0520|T52P1]] CRT is standard in the 570. | A [[T0520|T52P1]] CRT is standard in the 570. | ||
==Links== | |||
* https://vintagetek.org/curve-tracers/ | |||
* [[Media:Tek 570 10 amp request.pdf|Request from GE for a 10-amp 570]] (1961) | |||
==Pictures== | ==Pictures== | ||
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Tek 570 assorted adapters.jpg | Tek 570 assorted adapters.jpg | ||
</gallery> | </gallery> | ||
==Notes== | |||
<references /> | |||
==Components== | |||
{{Parts|570}} | |||
[[Category:Curve tracers]] | [[Category:Curve tracers]] | ||
[[Category:Specifications needed]] | [[Category:Specifications needed]] | ||
[[Category:Introduced in 1955]] | [[Category:Introduced in 1955]] |