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{{Oscilloscope Sidebar | | |||
title=Tektronix R5031 | | |||
summary=1 MHz, 10 μV dual-beam storage scope | | |||
image=Tek-5031-front.jpg | | |||
caption=Tektronix 5031 front view | | |||
introduced=1969 | | |||
discontinued=1972 | | |||
manuals= | |||
* [http://w140.com/tek_r5031.pdf Tektronix R5031 Manual (PDF)] | |||
* [[File:Tek 5030 5031 from Catalog 1970.pdf|Models 5030/5031 in 1970 catalog (PDF, 8 pages)]] | |||
}} | |||
The '''Tektronix 5031''' is a dual-beam split-screen, bi-stable storage oscilloscope introduced in 1969 (no longer listed in the 1973 catalog). There is a portable benchtop model, the 5031, and a rack-mount model, the R5031, as well as a sister model [[5030]]/R5030 without storage. The 503x series are monolithic scopes (no plugins). | |||
The 5030 and 5031 feature differential and current probe (for [[P6021]]) inputs on both channels. Input ranges are similar to the contemporary [[3A9]] diff/current amplifier plugin but without the variable bandwidth and DC offset controls. The horizontal deflection system is shared. | |||
The 5031/5030 include a readout system which uses small lightbulb/fiber dot matrix displays external to the CRT, similar to that in the [[576]] curve tracer. Only the first and last steps on the time/div and volts/div switches are labelled. | |||
{{BeginSpecs}} | |||
{{Spec | Bandwidth | DC to 1 MHz (5 kHz limit switchable) }} | |||
{{Spec | Deflection | 10 μV/Div to 10 V/Div or 1 mA/Div to 200 mA/Div (1—2—5) }} | |||
{{Spec | Noise | < 15 μV / 200 μA }} | |||
{{Spec | Input impedance | 1 MΩ // 50 pF }} | |||
{{Spec | Time base | 1 μs/Div to 5 s/Div (1—2—5), magnifier × 1, 2, 5, 10, 20, 50 (1 μs/Div max.)}} | |||
{{Spec | CMRR | 100,000:1 to 100 kHz }} | |||
{{Spec | X input | 20 mV/Div to 500 mV/Div on Ext Horizontal, or Channel 2 in X-Y mode}} | |||
{{Spec | CRT | 8 × 10 Div @ 1.27 cm (0.5"), P31 phosphor }} | |||
{{Spec | Acceleration | 4 kV }} | |||
{{EndSpecs}} | |||
==Links== | |||
* http://www.eevblog.com/forum/testgear/vintage-tektronix-oscilloscope/ | |||
==Internals== | |||
The channel-1 and channel-2 input attenuators use a rotary barrel cam that moves several small contact | |||
arms to select the desired path through the attenuator networks. | |||
The design is similar to that seen in several 7000-series plug-ins. | |||
The front-end amplifier starts with a differential amplifier formed by | |||
both halves of a [[151-1027-00]] dual JFET, Q46, followed by a dual PNP. | |||
The rest of the signal path comprises differential amplifiers made of discrete | |||
BJTs, including the deflection amplifier, which uses [[SE7056]] transistors for | |||
its output stage. | |||
The 5031 makes extensive use of relays in the signal path. | |||
The 5031 has -4.1 kV on the CRT cathode, and no post-deflection acceleration. | |||
==Pictures== | |||
===5031=== | |||
<gallery> | |||
File:Tek-5031-3q.jpg | Tektronix 5031 | |||
File:Tek-5031-left.jpg | Left view | |||
File:Tek-5031-right.jpg | Right view | |||
File:Tek-5031-display1.jpg| Display detail (1) | |||
File:Tek-5031-display2.jpg| Display detail (2) | |||
File:Tek-5031-display3.jpg| Display detail (3) | |||
File:Tek-5031-fiberoptic-readout.jpg | Detail of fiberoptic readout module | |||
File:Tek-5031-bottom-1.jpg| Bottom view (1) | |||
File:Tek-5031-bottom2.jpg | Bottom view (2) | |||
File:Tek-5031-bottom3.jpg | Bottom view (3) | |||
File:Tek-5031-and-tds2014.jpg | Tektronix 5031 and TDS2014 | |||
</gallery> | |||
===R5031=== | |||
<gallery> | |||
File:Tek r5031 1.jpg|R5031 Front | |||
File:Tek r5031 2.jpg|R5031 Front Controls | |||
File:Tek r5031 3.jpg|R5031 Rear | |||
</gallery> | |||
[[Category:Analog storage scopes]] | |||
[[Category:Dual beam scopes]] |