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-{{Oscilloscope Sidebar|
+{{Instrument Sidebar
-title=Tektronix 570 |
+|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
-summary=Curve tracer for tubes |
+|caption=Tektronix 570 front
-manuals=
+|introduced=1955
-* [http://w140.com/tek_570_rk.pdf Tektronix 570 Manual 070-167 (good quality, OCR, PDF)]
+|discontinued=(?)
-* [http://w140.com/tek_570_manual_070-359_7-63.pdf Tektronix 570 Manual (good quality, PDF)]
+|designers=John Kobbe
-* [http://w140.com/mmm/tek-570.pdf Tektronix 570 Manual (mediocre quality, PDF)]
+|manuals=
-* [http://w140.com/tek_fcp/tek_570_fac_cal.pdf Tektronix 570 Factory Calibration Procedure (PDF)]
+* [[Media:070-167.pdf|Tektronix 570 Manual 070-167 (1955)]] (OCR)
+* [[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, introduced in 1955.
+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.
 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.
+[[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}}
@@ Line 29: / Line 43: @@
 * T401: multitap autotransformer for selecting peak plate voltage, feeds T310
 * T501: transformer for floating supplies and screen voltage supply
-* T620: transformer for 60kHz 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 first stage is a differential amplifier made of two [[6AU6]] tubes.
 The second stage is a differential amplifier made of both halves of a [[6BQ7A]].
+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==
+=== Early Tektronix 570 (Brown Era) ===
+<gallery>
+Tek570-test-setup.jpg
+Tek 570 top controls and storage.jpg
+</gallery>
+===Tektronix 570 Serial Number 5010===
 <gallery>
 Tektronix-570-Outside-Front.jpg
-Tek570-test-setup.jpg
 Tektronix-570-Inside-Right.jpg
 Tektronix-570-Inside-Left.jpg
@@ Line 50: / Line 74: @@
 Tektronix-570-Outside-Front-Close2.jpg
 Tektronix-570-Inside-Right-Close3.jpg
-Tek 570 top controls and storage.jpg
+</gallery>
+=== Tektronix 570 Serial Number 5055 ===
+<gallery>
+tek_570_sn5055_1.jpg
+tek_570_sn5055_2.jpg
+tek_570_sn5055_3.jpg
+tek_570_sn5055_4.jpg
+tek_570_sn5055_5.jpg
+tek_570_sn5055_6.jpg
+tek_570_sn5055_7.jpg
+tek_570_sn5055_8.jpg
+tek_570_sn5055_9.jpg
+tek_570_sn5055_10.jpg
+tek_570_sn5055_11.jpg
+tek_570_sn5055_12.jpg
+</gallery>
+=== Tektronix 570 Serial Number 5148 ===
+<gallery>
+tek_570_sn5148_1.jpg
+tek_570_sn5148_2.jpg
+tek_570_sn5148_3.jpg
+tek_570_sn5148_4.jpg
+tek_570_sn5148_5.jpg
+tek_570_sn5148_6.jpg
+tek_570_sn5148_7.jpg
+tek_570_sn5148_8.jpg
+tek_570_sn5148_9.jpg
+tek_570_sn5148_10.jpg
+tek_570_sn5148_11.jpg
+tek_570_sn5148_12.jpg
+</gallery>
+=== Tektronix 570 Serial Number 5429 ===
+<gallery>
+Tek 570 sn5429 1.jpg
+Tek 570 sn5429 2.jpg
+Tek 570 sn5429 3.jpg
+Tek 570 sn5429 4.jpg
+Tek 570 sn5429 5.jpg
+Tek 570 sn5429 6.jpg
+Tek 570 sn5429 7.jpg
+</gallery>
+===Adaptors for Different Tube Bases===
+<gallery>
+Tek 570 12-pin fixture 1.jpg|12-pin adaptor
+Tek 570 12-pin fixture 2.jpg|12-pin adaptor
+Tek 570 seven pin miniature adapter 1.jpg|7-pin miniature adaptor
+Tek 570 seven pin miniature adapter 2.jpg|7-pin miniature adaptor
+Tek 570 assorted adapters.jpg
 </gallery>
+==Notes==
+<references />
+==Components==
+{{Parts|570}}
 [[Category:Curve tracers]]
 [[Category:Specifications needed]]
 [[Category:Introduced in 1955]]