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In August of 1969 Tektronix issued a [[Media:Aug 1969 Catalog Supplement.pdf|supplement catalog]] featuring a new series of instruments: The 7000 series. [[Howard Vollum]] himself wrote the introduction message on page 1, where he presented the 7000 series as a replacement to the [[500-series_scopes|500 scope series]] , emphasizing the necessity to switch to a new platform for modular high-end scopes due to the limitations of the original [[500-series_scopes|500 series platform]] designed in 1953. According to Vollum $28 million were spent to develop the initial components and products of the 7000 series. While the original mainframes [[7504]] and [[7704]] introduced in 1969 were short-lived, some of the original plug-ins as the [[7A22]] or the [[7S11]] were produced until the early 1990s
In August of 1969, Tektronix issued a [[Media:Aug 1969 Catalog Supplement.pdf|supplement catalog]]  
featuring a new series of instruments, called the '''[[7000-series scopes|7000 Series]]'''.


[[Howard Vollum]] himself wrote the introduction message on page 1 of this supplement, where he presented the 7000 series as a replacement to the [[500-series_scopes|500 scope series]], emphasizing the necessity to switch to a new platform for modular high-end scopes due to the limitations of the original [[500-series_scopes|500 series platform]] designed in 1953.


Common features of [[7000-series_scopes| 7000-series scopes]]:
According to Vollum, a significant portion of the previous two years' $28 million engineering budget (~250m in 2023 dollars!) were spent to develop the initial components and products of the 7000 series.
* 2 horizontal plug-in bays
 
* 1 (7XX3) or 2 (7XX4) vertical plug-in bays (except digitizers)
The initial family [[introduced in 1969|introduction in 1969]] consisted of the 90 MHz [[7504]] and 150 MHz [[7704]] mainframes, and no less than 13 plug-ins − the [[7A11]] FET-probe amplifier, [[7A12]] dual-channel amplifier, [[7A13]] differential comparator, [[7A14]] current-probe amplifier, [[7A16]] singles-channel amplifier, [[7A22]] differential amplifier, [[7B51]] and [[7B70]] delaying timebases, [[7B50]] and [[7B70]] delayed timebases, [[7S11]]/[[7T11]] sampling system, and the [[7M11]] delay line.
* horizontal and vertical plug-ins can be used in non native slots
 
* [[7000_series_readout_system|On screen readout controlled from plug-ins]]
While the original [[7504]] and [[7704]] mainframes were short-lived, the series lasted until the early 1990s, with some of the original plug-ins like the [[7A22]] or the [[7S11]] remaining in production throughout.
*  Consistent color scheme on scopes and plugins
 
* [[7000_Series_plug-in_interface|Differential, calibrated 50 Ohm signal and trigger connections from plug-in to backplane]]
==Common features of 7000-series scopes==
* Designed for [[7000-series plug-ins|plug-ins]] for flexibility. The last digit of the scope designation refers to the total number of plug-in bays.
* One ([[7912]]) or two (all other 7000) vertical plug-in bays
* Zero ([[7612D]]), one (7xx3, 7912) or two (7xx4) horizontal plug-in bays
* Horizontal and vertical plug-ins can be used in bays of the other type, e.g. an amplifier in a timebase bay can be used for X-Y display
* [[7000_series_readout_system|On screen readout controlled from plug-ins]] including [[BNC_connector_with_readout_ring|probe scaling]]
* [[7000_Series_plug-in_interface|Differential, calibrated 50 Ω signal and trigger connections from plug-in to backplane]]
 
==Meaning of the type numbers==
* first digit − series
** 7000
* second digit − bandwith
** 3: 25 MHz
** 4: 65 MHz
** 5: 90/100 MHz
** 6: 100 MHz
** 7: 150/200 MHz
** 8: 400 MHz
** 9: 500 MHz
** 1: 1000 MHz
* third digit − CRT type / storage
** 0: no storage
** 1: single-mode analog storage: variable-persistence or bistable storage
** 2: multi-mode analog storage
** 3: fast multi-mode analog storage
** 4: dual-beam
** 5: digital storage
* fourth digit − number of bays
 
Prefix R: Rack-mount version
 
Suffix A or B: later variant
 
Suffix N: no readout
 
==7000 series functional color code==
:{| cellpadding="9" style="text-align:center; vertical-align:middle;
|-
| bgcolor="#5F6D92"  | Display Mode Selection
|-
| bgcolor="#9FA644"  | Trigger Source or Control
|-
| bgcolor="#AC484A"  | Uncalibrated Variable
|-
| bgcolor="Gray"    | Denotes functional relation
|-
| bgcolor="#DEB736"  | Caution
|-
| bgcolor="#D77232"  | Exclusive funktion
|}
 
 
This info was taken from a [https://youtu.be/F_p5YsIImMY?t=954 video shared by the VintageTEK Museum on YouTube]
<gallery>
7k series colour coding.png | Diagram grabbed from the video
</gallery>
 
==Overview==
 
{| class="wikitable sortable"
|+ 7000 series overview
|-
! rowspan="2" | Scope
! rowspan="2" | Bandwith<br />[MHz]
! rowspan="2" | Plug-in<br />Bays
! rowspan="2" | Start <br /> of Sales
! rowspan="2" | End <br /> of Sales
! rowspan="2" | CRT Type
! rowspan="2" | CRT Raster<br />[cm/Div]
! Bistable<br /><small>(reduced scan)</small>
! Fast Bistable<br /><small>(reduced scan)</small>
! Var-Pers.<br /><small>(reduced scan)</small>
! Fast Var-Pers.<br /><small>(reduced scan)</small>
! rowspan="2" | Digital<br />storage
! rowspan="2" | Readout
! rowspan="2" | Power<br />[W]
! rowspan="2" | Cooling<br />fan
! rowspan="2" | Weight<br />[kg]
|-
! colspan=4 |  writing speed [div/µs]
|-
| [[7313]]  ||  25 || 3 || 1972 || 1979 || split-screen bi-stable storage || 1.0  ||  0.5 ||  -      ||  -  ||  -        ||  -  || YES || 170 ||  -  ||  ?
|-
| [[7403N]]  ||  65 || 3 || 1970 || 1975 || standard                      || 1.22 ||  -  ||  -      ||  -  ||  -        ||  -  ||  -  || 130 ||  -  || 13.6
|-
| [[R7403N]] ||  65 || 3 || 1971 || 1975 || standard                      || 1.22 ||  -  ||  -      ||  -  ||  -        ||  -  ||  -  ||  ?  ||  -  ||  ?
|-
| [[7503]]  ||  90 || 3 || 1970 || 1972 || standard                      || 1.0  ||  -  ||  -      ||  -  ||  -        ||  -  || YES || 258 ||  -  || 21.3
|-
| [[7504]]  ||  90 || 4 || 1969 || 1971 || standard                      || 1.0  ||  -  ||  -      ||  -  ||  -        ||  -  || YES || 285 ||  -  || 24.6
|-
| [[7514]]  ||  90 || 4 || 1970 || 1974 || split-screen bi-stable storage || 1.0  ||  1.0 ||  -      ||  -  ||  -        ||  -  || YES || 225 ||  -  || 19.5
|-
| [[7603]]  ||  100 || 3 || 1972 || 1990 || standard                      || 1.22 ||  -  ||  -      ||  -  ||  -        ||  -  || YES || 170 || Some versions || 13.6
|- 
| [[R7603]]  ||  100 || 3 || 1973 || 1990 || standard                      || 1.22 ||  -  ||  -      ||  -  ||  -        ||  -  || YES || 170 ||  ?  || 13.6
|-
| [[7613]]  ||  100 || 3 || 1972 || 1990 || variable-persistence storage  ||  0.9 ||  -  ||  -      ||  5  ||  -        ||  -  || YES || 170 || YES || 13.6
|-
| [[R7613]]  ||  100 || 3 || 1973 || 1990 || variable-persistence storage  ||  0.9 ||  -  ||  -      ||  5  ||  -        ||  -  || YES || 180 || YES || 13.6
|-
| [[7623]]  ||  100 || 3 || 1972 || 1975 || multi-mode transfer storage    ||  0.9 || 0.03 ||  50      || 0.5 || 100        ||  -  || YES || 170 ||  -  || 13.6
|-
| [[R7623]]  ||  100 || 3 || 1973 || 1974 || multi-mode transfer storage    ||  0.9 || 0.03 ||  50      || 0.5 || 100        ||  -  || YES || 180 ||  -  ||  ?
|- 
| [[7623A]]  ||  100 || 3 || 1975 || 1990 || multi-mode transfer storage    ||  0.9 || 0.03 ||  50      || 0.5 || 150        ||  -  || YES || 170 ||  -  || 13.6
|-
| [[R7623A]] ||  100 || 3 || 1975 || 1991 || multi-mode transfer storage    ||  0.9 || 0.03 ||  50      || 0.5 || 150        ||  -  || YES || 180 ||  -  || 13.6
|-
| [[7623B]]  ||  100 || 3 || 1991 || 1992 || multi-mode transfer storage    ||  0.9 || 0.03 (Y,?) ||  50 (Y,?) || 0.5 (Y,?) || 150 (2200) ||  -  || YES ||  ?  ||  -  ||  ?
|-
| [[R7623B]] ||  100 || 3 || 1991 || 1992 || multi-mode transfer storage    ||  0.9 || 0.03 (Y,?) ||  50 (Y,?) || 0.5 (Y,?) || 150 (2200) ||  -  || YES ||  ?  ||  -  ||  ?
|-
| [[7633]]  ||  100 || 3 || 1975 || 1990 || multi-mode transfer storage    ||  0.9 || 0.03 (0.2) ||  50 (400) || 0.5 (3) || 150 (2222) ||  -  || YES || 170 ||  -  || 13.6
|-
| [[R7633]]  ||  100 || 3 || 1975 || 1990 || multi-mode transfer storage    ||  0.9 || 0.03 (0.2) ||  50 (400) || 0.5 (3) || 150 (2222) ||  -  || YES || 180 ||  -  || 13.6
|-
| [[7704]]  ||  150 || 4 || 1969 || 1972 || standard                      ||  1.0 ||  -  ||  -      ||  -  ||  -        ||  -  || YES || 210 ||  -  || 19.1
|-
| [[R7704]]  ||  150 || 4 || 1970 || 1985 || standard                      ||  1.0 ||  -  ||  -      ||  -  ||  -        ||  -  || YES ||  ?  ||  -  ||  ?
|-
| [[7704A]]  ||  200 || 4 || 1972 || 1987 || standard                      ||  1.0 ||  -  ||  -      ||  -  ||  -        ||  -  || YES || 180 ||  -  || 13.6
|-
| [[7834]]  ||  400 || 4 || 1977 || 1986 || multi-mode transfer storage    ||  0.9 || 0.03 (0.2) ||  50 (776) || 2.0 (12) || 300 (5500) ||  -  || YES || 215 || YES || 17.0
|-
| [[7844]]  ||  400 || 4 || 1974 || 1988 || dual beam                      ||  1.0 ||  -  ||  -      ||  -  ||  -        ||  -  || YES || 235 || YES || 16.3
|-
| [[R7844]]  ||  400 || 4 || 1975 || 1992 || dual beam                      ||  1.0 ||  -  ||  -      ||  -  ||  -        ||  -  || YES || 235 || YES || 15.0
|-
| [[7854]]  ||  400 || 4 || 1980 || 1990 || standard / digital            ||  1.0 ||  -  ||  -      ||  -  ||  -        || YES || YES || 230 || YES || 19.0
|-
| [[7904]]  ||  500 || 4 || 1971 || 1983 || standard                      ||  1.0 ||  -  ||  -      ||  -  ||  -        ||  -  || YES || 190 ||  -  || 13.5
|-
| [[7903]]  ||  500 || 3 || ? || ? || standard                              ||  1.0 ||    -  ||  -      ||  -  ||  -        ||  -  || YES || ?  ||  -  || ?
|-
| [[R7903]]  ||  500 || 3 || 1974 || 1982 || standard                      ||  1.0 ||  -  ||  -      ||  -  ||  -        ||  -  || YES || 160 ||  -  || 13.5
|-
| [[7904A]]  ||  500 || 4 || 1984 || 1990 || standard                      ||  1.0 ||  -  ||  -      ||  -  ||  -        ||  -  || YES || 190 || YES || 13.5
|-
| [[7934]]  ||  500 || 4 || 1987 || 1990 || multi-mode transfer storage    ||  0.9 || 0.03 (0.2) ||  50 (776) || 2.0 (12) || 300 (8800) ||  -  || YES || 230 || YES || 17.2
|-
| [[7104]]  || 1000 || 4 || 1978 || 1990 || micro-channel plate            || 0.85 ||  -  ||  -      ||  -  || -          ||  -  || YES || 215 || YES || 19.8
|-
| [[R7103]]  || 1000 || 3 || 1985 || 1990 || micro-channel plate            || 0.85 ||  -  ||  -      ||  -  || -          ||  -  || YES ||  ?  || YES ||  ?
|-
| [[7D20]]  ||  70 || - || 1982 || 1992 || - (digital storage plug-in)    || -    ||  -  ||  -      ||  -  || -          || YES || YES ||  -  ||  -  ||  3.9
|-
| [[7612D]]  ||  90 || 2 || 1980 || 1988 || - (digitizer)                  || -    ||  -  ||  -      ||  -  || -          || YES ||  ?  || 400 || YES || 24.95
|-
| [[R7912]]  ||  500 || 2 || 1973 || 1978 || - (digitizer)                  || -    ||  -  ||  -      ||  -  || -          || YES ||  YES  ||  ?  || YES ||  ?
|-
| [[7912AD]] ||  500 || 2 || 1978 || 1987 || - (digitizer)                  || -    ||  -  ||  -      ||  -  || -          || YES ||  YES  || 360 || YES || 24.7
|-
| [[7912HB]] ||  750 || 2 || 1987 || 1989 || - (digitizer)                  || -    ||  -  ||  -      ||  -  || -          || YES ||  YES  ||  ?  || YES ||  ?
|-
| [[P7001]]  ||  175 || - || 1973 || 1981 || - (digitizer)                  || -    ||  -  ||  -      ||  -  || -          || YES ||  ?  || 120 || YES || 21.8
|}
 
==Links==
* [[7000-series_scopes|Scopes]]
* [[7000-series plug-ins|Plug-ins]]
* [[7000 series readout system|Readout system]]
* [[7000 Series plug-in interface|Backplane Interface]]
* [[7000-series remote control connector]]
* [[List of 7000 series equipment|List of 7000 series equipment]]
* [[Media:Tektronix7xxx Assemblies.pdf|Tektronix 7k Series Assemblies, compiled by Shannon Hill (PDF)]]
* [[Media:Introduction to the 7000 Series Switching and Logic Circuits (Ken Parker, 1970).pdf| Introduction to the 7000 Series Switching and Logic Circuits (Ken Parker, 1970)]] (PDF,OCR,1MB)
* [[7000 plugin packing|Plug-in packaging]]
* [[Back-lit switches]]
* [[Soviet 7000-series clones|Soviet Clones]]
* [http://www.k100.biz/e-Books.html Gianni Becattini's book dedicated to the 7000-Series]
* [https://www.youtube.com/watch?v=F_p5YsIImMY How the design of the frontend was developed] @ YouTube
 
 
[[Category:7000 series scopes]]
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