6R1A: Difference between revisions

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The Tektronix Type 6R1A is a plug-in for the [[567]] oscilloscope.  It replaced the [[6R1]].   
{{Plugin Sidebar 2 |
title=Tektronix 6R1 |
summary=Digital readout plug-in |
image=6r1a_front.JPG |
caption=6R1A Front view|
series=[[567]] scope|
introduced=(?) |
discontinued=(?) |
manuals=
* [http://bama.edebris.com/download/tek/6r1a/tek%206r1a.v6.pdf Tektronix 6R1A Manual (PDF)]
* [http://w140.com/tek_6r1a_1968_catalog.pdf Tektronix 6R1A in 1968 Catalog (PDF)]
}}
The '''Tektronix Type 6R1A''' is a plug-in for the [[567]] oscilloscope.  It replaced the [[6R1]].   
The 6R1A provides digital readout of time and voltage measurements
The 6R1A provides digital readout of time and voltage measurements
on waveforms.  The 6R1A (and the 567 in general) is oriented toward sampling 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
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 1MHz crystal oscillator.
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 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.
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6R1 uses several Nuvistor tubes.  In the 6R1A many tubes were replaced by transistors.
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
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.
[[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
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that allow the circuit cards in the 6R1 to be accessed for maintenance while the instrument is powered up.
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
File:6r1a_front.JPG|Front
Image:6r1a_left.JPG|Left
File:6r1a_left.JPG|Left
Image:6r1a_right.JPG|Right
File:6r1a_right.JPG|Right
Image:6r1a_top.JPG|Top
File:6r1a_top.JPG|Top
Image:6r1a_bottom.JPG|Bottom
File:6r1a_bottom.JPG|Bottom
Image:6r1a_rear.JPG|Rear
File:6r1a_rear.JPG|Rear
Image:6r1a_card_a.JPG|Card A (counter)
File:6r1a_card_a.JPG|Card A (counter)
Image:6r1a_card_a_back.JPG|Card A (counter)
File:6r1a_card_a_back.JPG|Card A (counter)
Image:6r1a_card_b.JPG|Card B (div 1, 2, 5)
File:6r1a_card_b.JPG|Card B (div 1, 2, 5)
Image:6r1a_card_b_back.JPG|Card B (div by 1, 2, 5)
File:6r1a_card_b_back.JPG|Card B (div by 1, 2, 5)
Image:6r1a_card_f.JPG|Card F (upper-limit no-go)
File:6r1a_card_f.JPG|Card F (upper-limit no-go)
Image:6r1a_card_f_back.JPG|Card F (upper-limit no-go)
File:6r1a_card_f_back.JPG|Card F (upper-limit no-go)
Image:6r1a_card_g.JPG|Card G (lower-limit no-go)
File:6r1a_card_g.JPG|Card G (lower-limit no-go)
Image:6r1a_card_g_back.JPG|Card G (lower-limit no-go)
File:6r1a_card_g_back.JPG|Card G (lower-limit no-go)
Image:6r1a_card_h.JPG|Card H (limit light driver)
File:6r1a_card_h.JPG|Card H (limit light driver)
Image:6r1a_card_h_back.JPG|Card H (limit light driver)
File:6r1a_card_h_back.JPG|Card H (limit light driver)
Image:6r1a_card_i.JPG|Card I (div by 10)
File:6r1a_card_i.JPG|Card I (div by 10)
Image:6r1a_card_i_back.JPG|Card I (div by 10)
File:6r1a_card_i_back.JPG|Card I (div by 10)
Image:6r1a_card_j.JPG|Card J (analog display)
File:6r1a_card_j.JPG|Card J (analog display)
Image:6r1a_card_j_back.JPG|Card J (analog display)
File:6r1a_card_j_back.JPG|Card J (analog display)
Image:6r1a_card_m.JPG|Card M (master gate)
File:6r1a_card_m.JPG|Card M (master gate)
Image:6r1a_card_m_back.JPG|Card M (master gate)
File:6r1a_card_m_back.JPG|Card M (master gate)
Image:6r1a_card_n.JPG|Card N (signal comparator)
File:6r1a_card_n.JPG|Card N (signal comparator)
Image:6r1a_card_n_back.JPG|Card N (signal comparator)
File:6r1a_card_n_back.JPG|Card N (signal comparator)
Image:6r1a_card_o.JPG|Card O (0% zone)
File:6r1a_card_o.JPG|Card O (0% zone)
Image:6r1a_card_o_back.JPG|Card O (0% zone)
File:6r1a_card_o_back.JPG|Card O (0% zone)
Image:6r1a_card_p.JPG|Card P (memory)
File:6r1a_card_p.JPG|Card P (memory)
Image:6r1a_card_p_back.JPG|Card P (memory)
File:6r1a_card_p_back.JPG|Card P (memory)
Image:6r1a_card_q.JPG|Card Q (voltmeter)
File:6r1a_card_q.JPG|Card Q (voltmeter)
Image:6r1a_card_q_back.JPG|Card Q (voltmeter)
File:6r1a_card_q_back.JPG|Card Q (voltmeter)
Image:6r1a_rear_connector_inside.JPG|Rear Connector
File:6r1a_rear_connector_inside.JPG|Rear Connector


File:6r1a connectors to indicator unit.png|Connectors to Indicator Unit
File:6r1a connectors to indicator unit.png|Connectors to Indicator Unit
Retrieved from "https://w140.com/tekwiki/wiki/6R1A"