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The Tektronix Type 6R1A is a plug-in for the [[567]] oscilloscope. It replaced the [[6R1]].   
{{Plugin Sidebar
The 6R1A provides digital readout of time and voltage measurements
|manufacturer=Tektronix
on waveforms. The 6R1A (and the 567 in general) is oriented toward sampling measurements.   
|series=567
The 6R1A is a counter and a comparator. To digitize analog voltages, the counter and comparator
|type=6R1A
are used as a ramp-compare ADC. Card Q (Voltmeter) contains a 1MHz crystal oscillator.
|summary=Digital readout plug-in
The counters (Card A) are made of flip-flops made of 2N1754 Germanium PNP transistors.
|image=6r1a_front.JPG
|caption=Tektronix 6R1A
|introduced=1964
|discontinued=1972
|designers=
|manuals=
* [[Media:070-411.pdf|Tektronix 6R1A Manual]] (PDF)
* [[Media:Tek 6r1a 1968 catalog.pdf|Tektronix 6R1A in 1968 Catalog]]
* [[Media:Tek 6r1a notes ocr.pdf|Tektronix 6R1A Notes (OCR)]]
* [[Media:Tek 6R1A and system calibration.pdf|Tektronix 6R1A and System Calibration (OCR PDF, 26M)]]
}}
The '''Tektronix 6R1A''' is a plug-in for the [[567]] oscilloscope.
It replaced the [[6R1]].   
The 6R1A provides digital readout of time and voltage measurements on waveforms.
The 6R1A (and the 567 in general) is oriented toward sampling measurements.   
The 6R1A is a counter and a comparator.
To digitize analog voltages, the counter and comparator are used as a ramp-compare ADC.
Card Q (Voltmeter) contains a 1 MHz crystal oscillator.
The counters (Card A) are made of flip-flops made of [[2N1754]] Germanium PNP transistors.


The 6R1A differs sightly from the 6R1, mainly in what determines the 0% zone.
The 6R1A differs sightly from the 6R1, mainly in what determines the 0% zone.
In the 6R1, the 0% zone is always the leftmost major division of the
In the 6R1, the 0% zone is always the leftmost major division of the trace.
trace. In the 6R1A, the horizontal position of the 0% zone can be set arbitrarily.   
In the 6R1A, the horizontal position of the 0% zone can be set arbitrarily.   


Internally, the 6R1A differs from the 6R1 in how its functions are implemented. The
Internally, the 6R1A differs from the 6R1 in how its functions are implemented.
6R1 uses about seven tunnel diodes while the 6R1A uses only two tunnel diodes. The  
The 6R1 uses about seven tunnel diodes while the 6R1A uses only two tunnel diodes.
6R1 uses several Nuvistor tubes. In the 6R1A many tubes were replaced by transistors.
The 6R1 uses several Nuvistor tubes.
Take for example the front end of the SIGNAL COMPARATOR board. In the 6R1 it uses two
In the 6R1A many tubes were replaced by transistors.
7586 Nuvistor triodes. In the 6R1A it is two NPN transistors.
Take for example the front end of the SIGNAL COMPARATOR board.
In the 6R1 it uses two [[7586]] Nuvistor triodes.
In the 6R1A it is two NPN transistors.


The digital display of the Tektronix 6R1 is composed of four [[Burroughs B5092]] Nixie
The digital display of the Tektronix 6R1 is composed of four [[Burroughs B5092]] Nixie tubes for the digits,  
tubes for the digits, and one  
and one [http://www.tube-tester.com/sites/nixie/data/B-5094/b-5094.htm Burroughs B5094] Nixie tube for the units.
[http://www.tube-tester.com/sites/nixie/data/B-5094/b-5094.htm Burroughs B5094] Nixie tube for the units.


There is an extender plug-in, the [[067-0505-00]], that allows a 6R1 or 6R1A to be operated  
There is an extender plug-in, the [[067-0505-00]], that allows a 6R1 or 6R1A to be operated outside the plug-in bay of the 567 for maintenance purposes.   
outside the plug-in bay of the 567 for maintenance purposes.   
There are extension cards, the 012-067 and 012-068 (shown below), that allow the circuit cards in the 6R1 to be accessed for maintenance while the instrument is powered up.
There are extension cards, the 012-067 and 012-068 (shown below),  
that allow the circuit cards in the 6R1 to be accessed for maintenance while the instrument is powered up.


==Specifications==
''please add''


* [http://bama.edebris.com/download/tek/6r1a/tek%206r1a.v6.pdf Tektronix 6R1A Manual (PDF)]
==Pictures==
* [http://w140.com/tek_6r1a_1968_catalog.pdf Tektronix 6R1A in 1968 Catalog (PDF)]
 
<gallery>
<gallery>
Image:6r1a_front.JPG|Front
6r1a_front.JPG                             | Front
Image:6r1a_left.JPG|Left
6r1a_left.JPG                               | Left
Image:6r1a_right.JPG|Right
6r1a_right.JPG                             | Right
Image:6r1a_top.JPG|Top
6R1A_RHS.jpg                                | RHS - later serial with smaller Memory circuit cards
Image:6r1a_bottom.JPG|Bottom
6r1a_top.JPG                               | Top
Image:6r1a_rear.JPG|Rear
6r1a_bottom.JPG                             | Bottom with Voltmeter and Memory circuit cards visible
Image:6r1a_card_a.JPG|Card A (counter)
6r1a_rear.JPG                               | Rear
Image:6r1a_card_a_back.JPG|Card A (counter)
6r1a_card_a.JPG                             | Card A (counter)
Image:6r1a_card_b.JPG|Card B (div 1, 2, 5)
6r1a_card_a_back.JPG                       | Card A (counter)
Image:6r1a_card_b_back.JPG|Card B (div by 1, 2, 5)
6r1a_card_b.JPG                             | Card B (div 1, 2, 5)
Image:6r1a_card_f.JPG|Card F (upper-limit no-go)
6r1a_card_b_back.JPG                       | Card B (div by 1, 2, 5)
Image:6r1a_card_f_back.JPG|Card F (upper-limit no-go)
6r1a_card_f.JPG                             | Card F (upper-limit no-go)
Image:6r1a_card_g.JPG|Card G (lower-limit no-go)
6r1a_card_f_back.JPG                       | Card F (upper-limit no-go)
Image:6r1a_card_g_back.JPG|Card G (lower-limit no-go)
6r1a_card_g.JPG                             | Card G (lower-limit no-go)
Image:6r1a_card_h.JPG|Card H (limit light driver)
6r1a_card_g_back.JPG                       | Card G (lower-limit no-go)
Image:6r1a_card_h_back.JPG|Card H (limit light driver)
6r1a_card_h.JPG                             | Card H (limit light driver)
Image:6r1a_card_i.JPG|Card I (div by 10)
6r1a_card_h_back.JPG                       | Card H (limit light driver)
Image:6r1a_card_i_back.JPG|Card I (div by 10)
6r1a_card_i.JPG                             | Card I (div by 10)
Image:6r1a_card_j.JPG|Card J (analog display)
6r1a_card_i_back.JPG                       | Card I (div by 10)
Image:6r1a_card_j_back.JPG|Card J (analog display)
6r1a_card_j.JPG                             | Card J (analog display)
Image:6r1a_card_m.JPG|Card M (master gate)
6r1a_card_j_back.JPG                       | Card J (analog display)
Image:6r1a_card_m_back.JPG|Card M (master gate)
6r1a_card_m.JPG                             | Card M (master gate)
Image:6r1a_card_n.JPG|Card N (signal comparator)
6r1a_card_m_back.JPG                       | Card M (master gate)
Image:6r1a_card_n_back.JPG|Card N (signal comparator)
6r1a_card_n.JPG                             | Card N (signal comparator)
Image:6r1a_card_o.JPG|Card O (0% zone)
6r1a_card_n_back.JPG                       | Card N (signal comparator)
Image:6r1a_card_o_back.JPG|Card O (0% zone)
6r1a_card_o.JPG                             | Card O (0% zone)
Image:6r1a_card_p.JPG|Card P (memory)
6r1a_card_o_back.JPG                       | Card O (0% zone)
Image:6r1a_card_p_back.JPG|Card P (memory)
6r1a_card_p.JPG                             | Card P (memory)
Image:6r1a_card_q.JPG|Card Q (voltmeter)
6r1a_card_p_back.JPG                       | Card P (memory)
Image:6r1a_card_q_back.JPG|Card Q (voltmeter)
6r1a_card_q.JPG                             | Card Q (voltmeter)
Image:6r1a_rear_connector_inside.JPG|Rear Connector
6r1a_card_q_back.JPG                       | Card Q (voltmeter)
6r1a_rear_connector_inside.JPG             | Rear Connector


File:6r1a connectors to indicator unit.png|Connectors to Indicator Unit
6r1a connectors to indicator unit.png       | Connectors to Indicator Unit
File:6r1a plug-in card connectors.png|Plug-in Card Connectors
6r1a plug-in card connectors.png           | Plug-in Card Connectors
File:6r1a signal comparator schem.png|Signal Comparator
6r1a signal comparator schem.png           | Signal Comparator
File:6r1a master gate schem.png|Master Gate
6r1a master gate schem.png                 | Master Gate
File:6r1a voltmeter schem.png|Voltmeter
6r1a voltmeter schem.png                   | Voltmeter
File:6r1a lower limit no-go schem.png|Lower Limit No-Go
6r1a lower limit no-go schem.png           | Lower Limit No-Go
File:6r1a upper limit no-go schem.png|Upper Limit No-Go
6r1a upper limit no-go schem.png           | Upper Limit No-Go
File:6r1a limit light driver schem.png|Limit Light Driver
6r1a limit light driver schem.png           | Limit Light Driver
File:6r1a divide by 10.png|Divide By 10
6r1a divide by 10.png                       | Divide By 10
File:6r1a divide 1 2 5 schem.png|Divide By 1, 2, 5
6r1a divide 1 2 5 schem.png                 | Divide By 1, 2, 5
File:6r1a counter schem.png|Counter
6r1a counter schem.png                     | Counter
File:6r1a analog display schem.png|Analog Display
6r1a analog display schem.png               | Analog Display
File:6r1a 0 percent zone schem.png|0 Percent Zone
6r1a 0 percent zone schem.png               | 0 Percent Zone
File:6r1a 0 and 100 memories schem.png|0 and 100 Percent Memories
6r1a 0 and 100 memories schem.png           | 0 and 100 Percent Memories
File:6r1a external readout connector j31.png|External Readout Connector J31
6r1a external readout connector j31.png     | External Readout Connector J33
File:6r1a external programming connector j34.png|External Programming Connector J34
6r1a external programming connector j34.png | External Programming Connector J34
File:Tek_012-067_012-068_1964_cat.jpg|012-067_and 012-068 Extender Cards for Maintenance
Tek_012-067_012-068_1964_cat.jpg           | 012-067_and 012-068 Extender Cards for Maintenance
Tek 6r1a series p model 7 component.jpg    | Series P Memory Card, Model 7, Component Side
Tek 6r1a series p model 7 back.jpg          | Series P Memory Card, Model 7, Back Side
Tek 6r1a series p model 7 bracket.jpg      | Series P Memory Card, Model 7, Bracket
</gallery>
</gallery>
[[Category:560 series plugins]]

Latest revision as of 11:17, 18 September 2024

Tektronix 6R1A
Digital readout plug-in
Tektronix 6R1A

Compatible with 567

Produced from 1964 to 1972

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix 6R1A is a plug-in for the 567 oscilloscope. It replaced the 6R1. The 6R1A provides digital readout of time and voltage measurements on waveforms. The 6R1A (and the 567 in general) is oriented toward sampling measurements. The 6R1A is a counter and a comparator. To digitize analog voltages, the counter and comparator are used as a ramp-compare ADC. Card Q (Voltmeter) contains a 1 MHz crystal oscillator. The counters (Card A) are made of flip-flops made of 2N1754 Germanium PNP transistors.

The 6R1A differs sightly from the 6R1, mainly in what determines the 0% zone. In the 6R1, the 0% zone is always the leftmost major division of the trace. In the 6R1A, the horizontal position of the 0% zone can be set arbitrarily.

Internally, the 6R1A differs from the 6R1 in how its functions are implemented. The 6R1 uses about seven tunnel diodes while the 6R1A uses only two tunnel diodes. The 6R1 uses several Nuvistor tubes. In the 6R1A many tubes were replaced by transistors. Take for example the front end of the SIGNAL COMPARATOR board. In the 6R1 it uses two 7586 Nuvistor triodes. In the 6R1A it is two NPN transistors.

The digital display of the Tektronix 6R1 is composed of four Burroughs B5092 Nixie tubes for the digits, and one Burroughs B5094 Nixie tube for the units.

There is an extender plug-in, the 067-0505-00, that allows a 6R1 or 6R1A to be operated outside the plug-in bay of the 567 for maintenance purposes. There are extension cards, the 012-067 and 012-068 (shown below), that allow the circuit cards in the 6R1 to be accessed for maintenance while the instrument is powered up.

Specifications

please add

Pictures

  • Front

    Front

  • Left

    Left

  • Right

    Right

  • RHS - later serial with smaller Memory circuit cards

    RHS - later serial with smaller Memory circuit cards

  • Top

    Top

  • Bottom with Voltmeter and Memory circuit cards visible

    Bottom with Voltmeter and Memory circuit cards visible

  • Rear

    Rear

  • Card A (counter)

    Card A (counter)

  • Card A (counter)

    Card A (counter)

  • Card B (div 1, 2, 5)

    Card B (div 1, 2, 5)

  • Card B (div by 1, 2, 5)

    Card B (div by 1, 2, 5)

  • Card F (upper-limit no-go)

    Card F (upper-limit no-go)

  • Card F (upper-limit no-go)

    Card F (upper-limit no-go)

  • Card G (lower-limit no-go)

    Card G (lower-limit no-go)

  • Card G (lower-limit no-go)

    Card G (lower-limit no-go)

  • Card H (limit light driver)

    Card H (limit light driver)

  • Card H (limit light driver)

    Card H (limit light driver)

  • Card I (div by 10)

    Card I (div by 10)

  • Card I (div by 10)

    Card I (div by 10)

  • Card J (analog display)

    Card J (analog display)

  • Card J (analog display)

    Card J (analog display)

  • Card M (master gate)

    Card M (master gate)

  • Card M (master gate)

    Card M (master gate)

  • Card N (signal comparator)

    Card N (signal comparator)

  • Card N (signal comparator)

    Card N (signal comparator)

  • Card O (0% zone)

    Card O (0% zone)

  • Card O (0% zone)

    Card O (0% zone)

  • Card P (memory)

    Card P (memory)

  • Card P (memory)

    Card P (memory)

  • Card Q (voltmeter)

    Card Q (voltmeter)

  • Card Q (voltmeter)

    Card Q (voltmeter)

  • Rear Connector

    Rear Connector

  • Connectors to Indicator Unit

    Connectors to Indicator Unit

  • Plug-in Card Connectors

    Plug-in Card Connectors

  • Signal Comparator

    Signal Comparator

  • Master Gate

    Master Gate

  • Voltmeter

    Voltmeter

  • Lower Limit No-Go

    Lower Limit No-Go

  • Upper Limit No-Go

    Upper Limit No-Go

  • Limit Light Driver

    Limit Light Driver

  • Divide By 10

    Divide By 10

  • Divide By 1, 2, 5

    Divide By 1, 2, 5

  • Counter

    Counter

  • Analog Display

    Analog Display

  • 0 Percent Zone

    0 Percent Zone

  • 0 and 100 Percent Memories

    0 and 100 Percent Memories

  • External Readout Connector J33

    External Readout Connector J33

  • External Programming Connector J34

    External Programming Connector J34

  • 012-067_and 012-068 Extender Cards for Maintenance

    012-067_and 012-068 Extender Cards for Maintenance

  • Series P Memory Card, Model 7, Component Side

    Series P Memory Card, Model 7, Component Side

  • Series P Memory Card, Model 7, Back Side

    Series P Memory Card, Model 7, Back Side

  • Series P Memory Card, Model 7, Bracket

    Series P Memory Card, Model 7, Bracket

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