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Based in London, UK<br>
Been using Tek scopes for many, many years.<br>
<br>
I own a couple of scopes not on this wiki<br>
<br>
I need to remind myself to refer to the style guide for this wiki:
[[Tekwiki_Guidelines]]
<br>


I learned recently that the thickness of the 7000 series plugin PCBs (and presumably others) is ⅟<sub>16</sub>". There's no unicode symbol for that so I thought I'd try and take note of these two options:<br>
I might not be entirely neurotypical...
This is test text to check alignment 1/<sub>16</sub>" and trailing text.<br>
 
This is test text to check alignment ⅟<sub>16</sub>" and trailing text.<br>
...and I sometimes apologise.
This is test text to check alignment and trailing text.<br>
 
Born in London & based near London, UK.
 
I studied electronics engineering and love it. I find that it gives me a low level view of what systems are doing in my work with computers.
 
...and I work with computers a lot. I'm currently lead eng on some large gov cloud infra.
 
Been using Tek scopes for many, many years as a hobbyist.
 
I own a couple of scopes not on this wiki.
 
My life has changed a little and I've had to refine my planning... I've acquired a lot of equipment and it's quite a burden to catalogue, triage/assess and then plan for actual preservation and restoration... I'm looking forward to giving my favourite hobby more focus in my life - even re-organising my house to support it more...
 
 
__TOC__
 
=Things I'm working on=
 
==Testing plugins==
English has a habit of tripping us up... Especially as we use a variety of regional dialects here. I intend to create plugins for testing the mainframes, their power rails and some minimal features. Hopefully, along the way, I'll also gather ideas and notes to create test rigs for testing and calibrating plugins...
 
Inspired by some excellent plugins from Tek, Jared@NFM and others, and the fact that probing the backplane with test gear is a Royal Pita, I've cobbled some notes and parts together and intend to build something to test Telequipment, 7000 series, 5000 series and TM500 series mainframes.
 
==Octopus==
I have a [[7CT1N]] but like the idea of making some of our old scopes more useful by adding something like the octopus idea... At its simplest, the octopus can output X-Y to a scope. With storage, we can compare traces with known-good components. With programmable hardware, we can run complicated and automated tests.
 
==Repairs==
I love repairing electronics - it's been a hobby for many years. I find it therapeutic to restore things to working order, as well as rewarding to see something recovered from a path to landfill. It's a fond memory of mine to have been greeted by nephews and nieces with excitement and pleas to get me to repair things they'd liked to play with...
 
I've been buying Tek and Telequipment gear cheap to support sharing my enthusiasm with folk wanting to learn about electronics. Some of the items I've acquired need repair! Some might be rare enough that I need to plan the work to include pausing for photos or even good lighting and commentary for video...
 
I'll add a table here ASAP as I think that I'll need to solicit info and encourage discussion...
 
=Notes for other users=
 
==Plugin Interfaces==
 
Not sure if these photos have a place on the main wiki - the 7000 series are a lot deeper and a fraction wider.
The TM500, 5000 series and Telequipment plugins share the same chassis glide extrusions - but locations and widths of the glide keys and pins on the backs of the plugins prevent mishaps :-). The 11000 series is almost identical to the 7000 series but for the top optional connector which is shaped to prevent plugging into the wrong frame.
 
The TM500 and 5000 series interfaces are very similar to the [https://en.wikipedia.org/wiki/Japan_Amusement_Machine_and_Marketing_Association JAMMA] (Japanese Arcade Manufacture Marketing Association) but some connections are paired and some have a notch which removes a connection position.
 
<gallery>
Plugin connectors compared TQ TM500 and 5000 series.jpg | TQ, TM500 (DC and PG families) and 5000 series connectors compared
5k TM500 TQ and 7k plugins compared.jpg                | TQ, TM500, 7000 series and 5000 series profiles compared
Modified_JAMMA_extender_-_2.jpg                        | [[TM500_system/Repairs | JAMMA connector modified for use in TM500]]
7k 5k and TM500 parts for plugins and extenders.jpeg    | Some parts for extenders and plugins
</gallery>
 
===Connector summary===
 
The various mainframe and plugin interfaces have different pitches to keep us on our toes. While the Tektronix seem to be numbered from the bottom of the connector, the Telequipment are numbered from the top.


{| class="wikitable sortable"
{| class="wikitable"
|+ Tektronix
|-
|-
! Series !! Model !! Options !! Notes
! Attribute!![[TM500_Series_plug-in_interface|TM500]]!![[5000_Series_plug-in_interface|5000]]!![[7000_Series_plug-in_interface|7000]]/[[11000_Series_plug-in_interface|11000]] !! [[Telequipment_plug-in_interface|Telequipment]]  !!  [[S_Series_plug-in_interface|3S]]
|-
|-
| [[5000-series_scopes|5000]] || [[5103N]] || [[D12]] Dual beam display module. || Missing plugins. Strange light mark on CRT/implosion guard.
| Pitch      ||     5/32"      ||      5/32"    ||     0.1"        ||     0.15"      || 5/32"
|-
|-
| [[5000-series_scopes|5000]] || [[5103N]] || [[D12]], [[5A18N]], [[5A22N]], [[5B12N]] and all five manuals to suit. ||  Near immaculate. Close inspection reveals that it's missing a chip! [[155-0056-00]]
| Positions  ||       28        ||       28      ||      38        ||      16        ||  6
|-
|-
| [[TM500_system|TM500]] || [[TM501]] || || Seems to work OK.
| Sides      ||       2        ||       2        ||       2        ||      1        ||  2
|-
|-
| [[TM500_system|TM500]] || [[TM503]]  || || Seems to work OK. Missing top cover.
| Connections ||     <56        ||      56        ||      76        ||       15        || 12
|-
|-
| [[TM500_system|TM500]] || [[TM506]] || || Seems to work OK.
| Thickness  || ⅟<sub>16</sub>" || ⅟<sub>16</sub>" || ⅟<sub>16</sub>" || <⅟<sub>16</sub>" ? || ⅟<sub>16</sub>" ?
|-
|-
| [[TM500_system|TM500]] || [[PG501]] || || Will service and calibrate this soon.
| Notes      ||Some connections use multiple positions.<br>Multiple and optional key slots.<br>Some positions free for local use.<br>JAMMA is almost identical<br>5000 series is almost identical||Cards have two key slots<br>JAMMA is almost identical<br>[[TM500_system/Repairs|TM500]] is almost identical|| - || Numbered from the top.<br> Key slot uses a position <br> Vertical slot has barrier at position 12 <br> Horizontal slot has barrier at position 5 || -
|}
 
A pivot of that table: (See [[User:Qfissler#Table_Generator | note below]])
 
{| class="wikitable" style="font-family:Arial, Helvetica, sans-serif !important; background-color:#F8F9FA; color:#202122;"
|- style="vertical-align:middle;"
! style="text-align:center; font-weight:bold; background-color:#EAECF0;" |  
! Pitch
! Positions
! Sides
! Connections
! Thickness
! Notes
|-
|-
| [[TM500_system|TM500]] || [[DC503]] || || Needs repair but mostly working. Completely worn print on five of the ten buttons.
| style="text-align:center; font-weight:bold; text-decoration:underline; background-color:#EAECF0; color:#0645AD;" | [[TM500_Series_plug-in_interface|TM500]]
| style="vertical-align:middle;" | 5/32"
| style="vertical-align:middle;" | 28
| style="vertical-align:middle;" | 2
| style="vertical-align:middle;" | <56
| style="vertical-align:middle;" | ⅟<sub>16</sub>"
| style="vertical-align:middle;" | Some connections use multiple positions.<br>Multiple and optional key slots.<br>Some positions free for local use.<br>JAMMA is almost identical<br>5000 series is almost identical
|-
|-
| [[TM500_system|TM500]] || [[FG504]] || || No power...
| style="text-align:center; font-weight:bold; text-decoration:underline; background-color:#EAECF0; color:#0645AD;" | [[5000_Series_plug-in_interface|5000]]
| style="vertical-align:middle;" | 5/32"
| style="vertical-align:middle;" | 28
| style="vertical-align:middle;" | 2
| style="vertical-align:middle;" | 56
| style="vertical-align:middle;" | ⅟<sub>16</sub>"
| style="vertical-align:middle;" | Cards have two key slots<br>JAMMA is almost identical<br>TM500 is almost identical
|-
|-
| [[TM500_system|TM500]] || [[PG506]] || || Will service and calibrate this soon.
| style="text-align:center; font-weight:bold; text-decoration:underline; background-color:#EAECF0; color:#0645AD;" | [[7000_Series_plug-in_interface|7000]]/[[11000_Series_plug-in_interface|11000]]
| style="vertical-align:middle;" | 0.1"
| style="vertical-align:middle;" | 38
| style="vertical-align:middle;" | 2
| style="vertical-align:middle;" | 76
| style="vertical-align:middle;" | ⅟<sub>16</sub>"
| style="vertical-align:middle;" | -
|-
|-
| [[7000-series_scopes|7000]] || [[7603]] || [[7A18]], [[7A18]] & [[7B53A]] || Engineer says it worked before he stored it but no trace visible now...
| style="text-align:center; font-weight:bold; text-decoration:underline; background-color:#EAECF0; color:#0645AD;" | [[Telequipment_plug-in_interface|Telequipment]]
| style="vertical-align:middle;" | 0.15"
| style="vertical-align:middle;" | 16
| style="vertical-align:middle;" | 1
| style="vertical-align:middle;" | 15
| style="vertical-align:middle;" | <⅟<sub>16</sub>" ?
| style="vertical-align:middle;" | Numbered from the top.<br> Key slot uses a position <br> Vertical slot has barrier at position 12 <br> Horizontal slot has barrier at position 5
|-
|-
| [[7000-series_scopes|7000]] || [[7613]] || Opt 6 Spectrum Analyser Graticule, [[7A15A]]x2 & [[7B53N]] ||  
| style="text-align:center; font-weight:bold; text-decoration:underline; background-color:#EAECF0; color:#0645AD;" | [[S_Series_plug-in_interface|3S]]
|-
| style="vertical-align:middle;" | 5/32"
| [[7000-series_scopes|7000]] || [[7623A]] || [[7A15A]], [[7A26]] & [[7B92A]] || My least favourite Tek scope?
| style="vertical-align:middle;" | 6
|-
| style="vertical-align:middle;" | 2
| [[7000-series_scopes|7000]] || [[7633]] || [[7A15A]], [[7A18]] & [[7B50]] ||
| style="vertical-align:middle;" | 12
|-
| style="vertical-align:middle;" | ⅟<sub>16</sub>" ?
| [[200-series_scopes|200]] || [[222PS]] || Carrying bag, pouch with probes as new, ops manual. || Pristine! Needs replacement battery pack and alignment - I could find that caps or dry joints need work when I try that...
| style="vertical-align:middle;" | -
|-
|}
| [[400-series_scopes|400]] || [[455]] || Pouch, Front cover, manuals || Queued for repair - completely DOA.
 
|-
==TelequipmenT Type 43==
| [[400-series_scopes|400]] || [[465]] || Pouch, OPT 7 (DC PSU Input) || Queued for repair - no trace.
I've got a manual for the TelequipmenT Type 43 (D43/D.43/D.43R/S.43) which is from 1965, the one on this wiki is newer - I think that mine is from before Tektronix bought Telequipment.  The one I've got has appendices for plugins D, G and H which are not in the 1968 printing. I see that there might be separate manuals for the plugins on the wiki - I've not checked all three but I see that my appendix for the H plugin has different content. All I've spotted so far is that the one on the wiki doesn't list all of the transistors (though the schematic shows the types) and is missing the two variable inductors, L21 and L22, which are listed as:
|-
 
| [[400-series_scopes|400]] || [[465]] || OPT 4 (EMI reduced), OPT 7 (DC PSU Input) || Queued for repair - no trace.
2.2/5.1μH Variable Inductor (Brown/Yellow)
|-
 
| [[400-series_scopes|400]] || [[465B]] || Front cover, pouch, manuals, calibration records. || Pristine (bar rear feet)
I might add this to the [[Telequipment_Type_H|H plugin page]] or its Discussion section.
 
==Repair notes==
 
Some notes for going to other pages when completed.
 
===LiI cells===
 
I have Lithium Iodide cells in a [[1240]] and its [[12RS01]] RAM pack.
Stamped 1983 and still showing 2.75 V in circuit with some bulge... I think that cell will get its own page for linking from the various device pages which contain one.
 
=Notes to me=
 
==Wiki editing==
I need to remind myself to refer to the style guide for this wiki:
* [[Tekwiki_Guidelines]]
 
...and a couple of extra handy references
* [https://www.mediawiki.org/wiki/Extension:Header_Tabs#Linking_to_tabs Header Tabs]
* [https://www.mediawiki.org/wiki/Cheatsheet MediaWiki Cheatsheet]
 
 
===Table Generator===
 
Have a look at this link!
* [https://www.tablesgenerator.com/mediawiki_tables Visual table Generator!]
If you see a table you want to edit, copy the rendered table from a page viewed in your browser (ie drag to select&highlight, then copy with Ctrl-C or right-click, copy) and paste it into the editor ("File", "Paste table data...") - from there, you can transpose/pivot and transform the table!
 
==Parts==
I've got a few notes re parts refs and BOMs for various scopes - I want to collate and present them here eventually.
I found a couple of useful sources and need to be able to find them when I want them... This wiki is perfect for that.
 
I have over 1800 parts refs, many with generic part refs for ordering. I'll not share them until I improve them (some conflicting info needs cleaning/refinement).
 
===Screws===
In the UK, UNF and UNC threads are relatively rare and expensive with metric being the norm.
 
[https://uk.rs-online.com/web/c/?pn=1&searchTerm=8-32+screw&rpp=20&selectedNavigation=attributes.Thread_Size=8-32%20(11%2F32X1%2F8)in||8%2F32||8%2F32in;attributes.Length=1in||1%201%2F4in;attributes.level3=Socket%20Screws|Screws for 2465 and 465 feet]
 
==Working with PDFs==
 
===Extracting Part Refs===
I had fun extracting lists of references to the [[151-0367-00]] transistor from the [[475]] service manual.
 
Get the text from the manual
$ pdftotxt 475_SM.pdf 475_SM.txt
 
The tables are split but remarkably consistent so it's not too difficult to work back and pick up the previous column
$ grep -B12 151-0367 475_SM.txt
 
Grab the refs I want and paste them into a text editor, then turn new lines into comma space...
 
I'll come back to this - I intend to simplify extraction of parts lists and other info (eg Manual change appendices) from the manuals so we can have useful cross reference and more.
 
===OCR===
The upload tasks page recommends that we overwrite a PDF if we OCR it - then all existing links would continue to work.
I think that we should share more info about good OCR methods as mine seemed to be less good than ones I download from this wiki.
I'll share notes about what works for me...
 
`ocrmypdf` seems to work very well - the recognised text lines up with the image text - best results so far.
 
Can extract pages from a pdf
pdfimages --all infile.pdf infile-extracted    # the last argument there is the prefix for the output file names
 
Remove any duff pages, rotate any pages which are better rotated, then img2pdf and ocrmypdf and then rebuild the pdf
 
Create PDF for images
$ img2pdf *.jpeg  --output T940-letter-June-1983.pdf
 
Running OCR
$ ocrmypdf T940-letter-June-1983.pdf T940-letter-June-1983-OCR.pdf
 
=Manuals=
It seems that I have a couple of manuals for which there were no scans on this wiki.
 
I've scanned two already but results could be better. I'll sort out a flat bed scanner in the coming months.
 
I have a 24 page guide for interfacing the 2445 and 2465 Option 10 - I didn't find it online so will scan and save it here soon. [[Media:070-5150-00.pdf|Opt.10 Instrument Interfacing Guide]]
 
I have the Ops Manual for the [[1200C01]] [[Media:070-4343-00.pdf|070-4343-00]] and 1983 corrections [[Media:070-4343-00_C1-783.pdf|C1/783]] - will scan within months.
 
<del>Another to do is the 7603 Operators Instruction Manual [[Media:070-1310-00.pdf|070-1310-00.pdf]] - left reference here to remind me and opportunity for anyone to prod me in case they need it.</del> Done
 
I have a [[1240| 1240 Logic Analyzer]] [[Media:062-6926-00 | Seminar Workbook]] - I'll scan this ASAP - front page for ref:
[[Media:1240 Workbook 062-6926-00 front page.jpg | 1240 Workbook]]
 
=Experimental pages=
 
==475 video links and components==
 
Testing cleaner links to videos and discrete component lookups
 
[[User:Qfissler/475-parts-test-page]]
 
==Formats for big lists of parts==
Reminder to test these on mobile and various.
 
* [[List_of_Tektronix_Parts_by_Category_as_Table|Long list of part categories in sortable table]]
* [[List_of_Tektronix_Parts_by_Category|Long list of parts with sections and TOC]]
 
==Fractions==
I learned recently that the thickness of the 7000 series plugin PCBs (and presumably others) is ⅟<sub>16</sub>". There's no unicode symbol for that so I thought I'd try and take note of these options:<br>
 
{| class="wikitable"
|+ Testing various options for formatting fractions
|-
|-
| [[400-series_scopes|400]] || [[465B]] || || Twitchy - needs service.
! Rendered
! From this markup
|-
|-
| [[400-series_scopes|400]] || [[465B]] || || Twitchy - needs service.
|         1/16"
| <nowiki>1/16"</nowiki>
|-
|-
| [[400-series_scopes|400]] || [[466]] ||  || Analogue storage version of 465
|         ⅟16"
| <nowiki>⅟16"</nowiki>
|-
|-
| [[400-series_scopes|400]] || [[468]] ||  || Storage version of 465B
|         1/<sub>16</sub>"
| <nowiki>1/<sub>16</sub>"</nowiki>
|-
|-
| [[400-series_scopes|400]] || [[468]] ||  || Damage to A trigger control...
|         ⅟<sub>16</sub>"
| <nowiki>⅟<sub>16</sub>"</nowiki>
|-
|-
| [[400-series_scopes|400]] || [[468]] || Cover, Op Manual, OPT 4 (EMI), OPT A2 (3 metre power cord with UK plug) ||  
|         <sup>7/</sup><sub>16"</sub>
| <nowiki><sup>7/</sup><sub>16"</sub></nowiki>
|-
|-
| [[TDS2000-series_scopes|TDS2000]] || [[TDS2012B]] ||  || USB version of TDS2012. I'm amazed how accurate it is for frequency readout. I need to take photos for the wiki!
|         <sup>7</sup>/<sub>16"</sub>
| <nowiki><sup>7</sup>/<sub>16"</sub></nowiki>
|-
|-
| [[2000-series_scopes|2000]] || [[2445]] || Pouch. || Queued for repair: Got this from someone who said it worked 8 years ago. Needs PSU caps and more. Row of knobs below CRT all smashed.
|         <sup>7</sup><sub>/16"</sub>
| <nowiki><sup>7</sup><sub>/16"</sub></nowiki>
|-
|-
| [[2000-series_scopes|2000]] || [[2445]] || Pouch, front cover. || Queued for repair: Got this from an engineer who says it has been on Royal Navy tour to The Falklands. Pristine front panel .
|         <sup>7</sup>/<sub>16</sub>"
| <nowiki><sup>7</sup>/<sub>16</sub>"</nowiki>
|-
|-
| [[2000-series_scopes|2000]] || [[2215]] ||  || Queued for repair: Got this from an engineer who says the trace is distorted.
|         <sup>7</sup>/<sub>16</sub><sup>"</sup>
| <nowiki><sup>7</sup>/<sub>16</sub><sup>"</sup></nowiki>
|-
|-
| [[2000-series_scopes|2000]] || [[2445B]] || Pouch || Queued for repair: Got this from an engineer who had recap'ed it - boot sequence seems OK - just get steady bright spot near centre on CRT.
|-
| [[2000-series_scopes|2000]] || [[2465B]] || Pouch, OPT 2 (Probe Power) || Queued for repair: RIFA caps + NVRAM (already backed up! Got FRAM replacement to fit.)
|-
| [[2000-series_scopes|2000]] || [[2465B]] || Pouch || My favourite scope!
|-
| [[TV_waveform_monitors|Waveform Monitors]] || [[1485C]] ||  || Dual-standard Television Waveform Monitor.
|}
|}
{| class="wikitable"
|+ Some of my Telequipment
|-
! Model !! Options !! Notes
|-
| [[Telequipment D67A|D67A]] || Front cover, manuals, calibration records || Immaculate!
|-
| [[Telequipment D75|D75]] ||  || Horizontal version of D83
|-
| [[Telequipment D83|D83]] ||  || I love this for the large screen - same tube as [[7403N]] and [[7603]]
|}
I have others... I intend to share more info some time soon.

Latest revision as of 09:04, 22 February 2024

I might not be entirely neurotypical...

...and I sometimes apologise.

Born in London & based near London, UK.

I studied electronics engineering and love it. I find that it gives me a low level view of what systems are doing in my work with computers.

...and I work with computers a lot. I'm currently lead eng on some large gov cloud infra.

Been using Tek scopes for many, many years as a hobbyist.

I own a couple of scopes not on this wiki.

My life has changed a little and I've had to refine my planning... I've acquired a lot of equipment and it's quite a burden to catalogue, triage/assess and then plan for actual preservation and restoration... I'm looking forward to giving my favourite hobby more focus in my life - even re-organising my house to support it more...


Things I'm working on

Testing plugins

English has a habit of tripping us up... Especially as we use a variety of regional dialects here. I intend to create plugins for testing the mainframes, their power rails and some minimal features. Hopefully, along the way, I'll also gather ideas and notes to create test rigs for testing and calibrating plugins...

Inspired by some excellent plugins from Tek, Jared@NFM and others, and the fact that probing the backplane with test gear is a Royal Pita, I've cobbled some notes and parts together and intend to build something to test Telequipment, 7000 series, 5000 series and TM500 series mainframes.

Octopus

I have a 7CT1N but like the idea of making some of our old scopes more useful by adding something like the octopus idea... At its simplest, the octopus can output X-Y to a scope. With storage, we can compare traces with known-good components. With programmable hardware, we can run complicated and automated tests.

Repairs

I love repairing electronics - it's been a hobby for many years. I find it therapeutic to restore things to working order, as well as rewarding to see something recovered from a path to landfill. It's a fond memory of mine to have been greeted by nephews and nieces with excitement and pleas to get me to repair things they'd liked to play with...

I've been buying Tek and Telequipment gear cheap to support sharing my enthusiasm with folk wanting to learn about electronics. Some of the items I've acquired need repair! Some might be rare enough that I need to plan the work to include pausing for photos or even good lighting and commentary for video...

I'll add a table here ASAP as I think that I'll need to solicit info and encourage discussion...

Notes for other users

Plugin Interfaces

Not sure if these photos have a place on the main wiki - the 7000 series are a lot deeper and a fraction wider. The TM500, 5000 series and Telequipment plugins share the same chassis glide extrusions - but locations and widths of the glide keys and pins on the backs of the plugins prevent mishaps :-). The 11000 series is almost identical to the 7000 series but for the top optional connector which is shaped to prevent plugging into the wrong frame.

The TM500 and 5000 series interfaces are very similar to the JAMMA (Japanese Arcade Manufacture Marketing Association) but some connections are paired and some have a notch which removes a connection position.

Connector summary

The various mainframe and plugin interfaces have different pitches to keep us on our toes. While the Tektronix seem to be numbered from the bottom of the connector, the Telequipment are numbered from the top.

Attribute TM500 5000 7000/11000 Telequipment 3S
Pitch 5/32" 5/32" 0.1" 0.15" 5/32"
Positions 28 28 38 16 6
Sides 2 2 2 1 2
Connections <56 56 76 15 12
Thickness ⅟16" ⅟16" ⅟16" <⅟16" ? ⅟16" ?
Notes Some connections use multiple positions.
Multiple and optional key slots.
Some positions free for local use.
JAMMA is almost identical
5000 series is almost identical		 Cards have two key slots
JAMMA is almost identical
TM500 is almost identical		 - Numbered from the top.
Key slot uses a position
Vertical slot has barrier at position 12
Horizontal slot has barrier at position 5		 -

A pivot of that table: (See note below)

Pitch Positions Sides Connections Thickness Notes
TM500 5/32" 28 2 <56 ⅟16" Some connections use multiple positions.
Multiple and optional key slots.
Some positions free for local use.
JAMMA is almost identical
5000 series is almost identical
5000 5/32" 28 2 56 ⅟16" Cards have two key slots
JAMMA is almost identical
TM500 is almost identical
7000/11000 0.1" 38 2 76 ⅟16" -
Telequipment 0.15" 16 1 15 <⅟16" ? Numbered from the top.
Key slot uses a position
Vertical slot has barrier at position 12
Horizontal slot has barrier at position 5
3S 5/32" 6 2 12 ⅟16" ? -

TelequipmenT Type 43

I've got a manual for the TelequipmenT Type 43 (D43/D.43/D.43R/S.43) which is from 1965, the one on this wiki is newer - I think that mine is from before Tektronix bought Telequipment. The one I've got has appendices for plugins D, G and H which are not in the 1968 printing. I see that there might be separate manuals for the plugins on the wiki - I've not checked all three but I see that my appendix for the H plugin has different content. All I've spotted so far is that the one on the wiki doesn't list all of the transistors (though the schematic shows the types) and is missing the two variable inductors, L21 and L22, which are listed as: 

2.2/5.1μH Variable Inductor (Brown/Yellow)

I might add this to the H plugin page or its Discussion section.

Repair notes

Some notes for going to other pages when completed.

LiI cells

I have Lithium Iodide cells in a 1240 and its 12RS01 RAM pack. Stamped 1983 and still showing 2.75 V in circuit with some bulge... I think that cell will get its own page for linking from the various device pages which contain one.

Notes to me

Wiki editing

I need to remind myself to refer to the style guide for this wiki:

...and a couple of extra handy references


Table Generator

Have a look at this link!

If you see a table you want to edit, copy the rendered table from a page viewed in your browser (ie drag to select&highlight, then copy with Ctrl-C or right-click, copy) and paste it into the editor ("File", "Paste table data...") - from there, you can transpose/pivot and transform the table!

Parts

I've got a few notes re parts refs and BOMs for various scopes - I want to collate and present them here eventually. I found a couple of useful sources and need to be able to find them when I want them... This wiki is perfect for that.

I have over 1800 parts refs, many with generic part refs for ordering. I'll not share them until I improve them (some conflicting info needs cleaning/refinement).

Screws

In the UK, UNF and UNC threads are relatively rare and expensive with metric being the norm.

for 2465 and 465 feet

Working with PDFs

Extracting Part Refs

I had fun extracting lists of references to the 151-0367-00 transistor from the 475 service manual.

Get the text from the manual 

$ pdftotxt 475_SM.pdf 475_SM.txt

The tables are split but remarkably consistent so it's not too difficult to work back and pick up the previous column 

$ grep -B12 151-0367 475_SM.txt

Grab the refs I want and paste them into a text editor, then turn new lines into comma space...

I'll come back to this - I intend to simplify extraction of parts lists and other info (eg Manual change appendices) from the manuals so we can have useful cross reference and more.

OCR

The upload tasks page recommends that we overwrite a PDF if we OCR it - then all existing links would continue to work. I think that we should share more info about good OCR methods as mine seemed to be less good than ones I download from this wiki. I'll share notes about what works for me...

`ocrmypdf` seems to work very well - the recognised text lines up with the image text - best results so far.

Can extract pages from a pdf 

pdfimages --all infile.pdf infile-extracted    # the last argument there is the prefix for the output file names

Remove any duff pages, rotate any pages which are better rotated, then img2pdf and ocrmypdf and then rebuild the pdf

Create PDF for images 

$ img2pdf *.jpeg  --output T940-letter-June-1983.pdf

Running OCR 

$ ocrmypdf T940-letter-June-1983.pdf T940-letter-June-1983-OCR.pdf

Manuals

It seems that I have a couple of manuals for which there were no scans on this wiki.

I've scanned two already but results could be better. I'll sort out a flat bed scanner in the coming months.

I have a 24 page guide for interfacing the 2445 and 2465 Option 10 - I didn't find it online so will scan and save it here soon. Opt.10 Instrument Interfacing Guide

I have the Ops Manual for the 1200C01 070-4343-00 and 1983 corrections C1/783 - will scan within months.

Another to do is the 7603 Operators Instruction Manual 070-1310-00.pdf - left reference here to remind me and opportunity for anyone to prod me in case they need it. Done

I have a 1240 Logic Analyzer Seminar Workbook - I'll scan this ASAP - front page for ref: 1240 Workbook

Experimental pages

475 video links and components

Testing cleaner links to videos and discrete component lookups

User:Qfissler/475-parts-test-page

Formats for big lists of parts

Reminder to test these on mobile and various.

Fractions

I learned recently that the thickness of the 7000 series plugin PCBs (and presumably others) is ⅟16". There's no unicode symbol for that so I thought I'd try and take note of these options:

Testing various options for formatting fractions
Rendered From this markup
1/16" 1/16"
⅟16" ⅟16"
1/16" 1/<sub>16</sub>"
⅟16" ⅟<sub>16</sub>"
7/16" <sup>7/</sup><sub>16"</sub>
7/16" <sup>7</sup>/<sub>16"</sub>
7/16" <sup>7</sup><sub>/16"</sub>
7/16" <sup>7</sup>/<sub>16</sub>"
7/16" <sup>7</sup>/<sub>16</sub><sup>"</sup>
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