570: Difference between revisions

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==Pictures==
==Pictures==


=== Early Tektronix 570 ===
<gallery>
Tek570-test-setup.jpg
Tek 570 top controls and storage.jpg
</gallery>
===Tektronix 570 Serial Number 5010===
<gallery>
<gallery>
Tektronix-570-Outside-Front.jpg
Tektronix-570-Outside-Front.jpg
Tek570-test-setup.jpg
Tektronix-570-Inside-Right.jpg
Tektronix-570-Inside-Right.jpg
Tektronix-570-Inside-Left.jpg
Tektronix-570-Inside-Left.jpg
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Tektronix-570-Outside-Front-Close2.jpg
Tektronix-570-Outside-Front-Close2.jpg
Tektronix-570-Inside-Right-Close3.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_1.jpg
tek_570_sn5055_2.jpg
tek_570_sn5055_2.jpg
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tek_570_sn5055_11.jpg
tek_570_sn5055_11.jpg
tek_570_sn5055_12.jpg
tek_570_sn5055_12.jpg
</gallery>
=== Tektronix 570 Serial Number 5148 ===
<gallery>
tek_570_sn5148_1.jpg
tek_570_sn5148_1.jpg
tek_570_sn5148_2.jpg
tek_570_sn5148_2.jpg
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tek_570_sn5148_11.jpg
tek_570_sn5148_11.jpg
tek_570_sn5148_12.jpg
tek_570_sn5148_12.jpg
</gallery>
=== Tektronix 570 Serial Number 5429 ===
<gallery>
Tek 570 sn5429 1.jpg
Tek 570 sn5429 1.jpg
Tek 570 sn5429 2.jpg
Tek 570 sn5429 2.jpg
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</gallery>
</gallery>


===Adaptors===
===Adaptors for Different Tube Bases===
<gallery>
<gallery>
Tek 570 12-pin fixture 1.jpg|12-pin adaptor
Tek 570 12-pin fixture 1.jpg|12-pin adaptor

Revision as of 09:29, 17 February 2020

{{{manufacturer}}} 
Curve tracer for tubes
Tektronix 570 front

Produced from 1955 to (?)

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix 570 is a curve tracer for tubes, introduced in 1955. It sweeps the plate voltage between zero and a selectable maximum voltage 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.

Key Specifications

  • please add

Internals

The 570 contains five transformers:

  • T310: center-tapped isolation transformer for plate sweep
  • T340: multitap transformer for heater voltages
  • T401: multitap autotransformer for selecting peak plate voltage, feeds T310
  • T501: transformer for floating supplies and screen voltage supply
  • T620: transformer for 60 kHz HV power oscillator for CRT voltages

The screen supply is regulated and uses a 6CD6GA tube as the series 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.

Pictures

Early Tektronix 570

Tektronix 570 Serial Number 5010

Tektronix 570 Serial Number 5055

Tektronix 570 Serial Number 5148

Tektronix 570 Serial Number 5429

Adaptors for Different Tube Bases