570: Difference between revisions

From TekWiki
Jump to navigation Jump to search
Line 54: Line 54:
Tek 570 12-pin fixture 1.jpg|12-pin fixture
Tek 570 12-pin fixture 1.jpg|12-pin fixture
Tek 570 12-pin fixture 2.jpg|12-pin fixture
Tek 570 12-pin fixture 2.jpg|12-pin fixture
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
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>
</gallery>



Revision as of 09:10, 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