User:Qfissler

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...

I opened up a barn find 7904 and am disappointed to find that it has a dummy board where the readout board should be ie, it has the dreaded Opt. 1... On the plus side, after a little cleaning, I found that the layers of guano seem to have protected the outside somewhat... I'm very pleased to find that a spare readout board I have from a 7603 was the same as used in the 7904

• 
• 
• 

I also have a 7504 barn find in similar condition...

Notes for other users

Colours

Gianni's book mentions that he used RAL 7034 to paint 3D printed knobs... Online, it looks too yellow - but on Gianni's scope, the colour looks correct!

• RAL 7000 vs RAL 7034

I intend to collate colour info here. I'd love to find some original documentation and extract colour info...

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.

• 

  TQ, TM500 (DC and PG families) and 5000 series connectors compared

• 

  TQ, TM500, 7000 series and 5000 series profiles compared

• 

  JAMMA connector modified for use in TM500

• 

  Some parts for extenders and plugins

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:

• Tekwiki_Guidelines

...and the Category Tree ...and Article Templates ...and a couple of extra handy references

• Header Tabs
• MediaWiki Cheatsheet

Table Generator

Have a look at this link!

• 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.

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

Formats for big lists of parts

Reminder to test these on mobile and various.

• Long list of part categories in sortable table
• 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 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>

Test table: Portable accessories

This table was extracted from an OCR of the 38W-5158 brochure.

Series	Probes	Active probes	Current probes	Misc
2400 Series
2445	P6131	P6201	P6021	016-0720-00 Protective cover, waterproof, Blue Vinyl
2465		P6202A	P6022	010-6131-01 Probe Package (for channels 3 & 4)
			A6302/AM 503	016-0691-00 Rackmount conversion kit
			A6303/AM 503	016-0096-00 Rear support kit (for rackmounted inst.)
				016-0180-00 Polarized Collapsible Viewing Hood
				016-0592-00 Folding Viewing Hood, Light-shielding
				016-0566-00 Collapsible Viewing Hood, Binocular
				346-0058-00 Carrying Strap
2300 Series
2335	P6108	P6201	P6021	016-0468-00 2335 Rack Adaptor Kit
2336	P6122	P6202A	P6022
2337	P6130		A6302/AM 503
			A6303/AM 503
2200 Series
2213	P6122	P6201	P6021	020-0672-00 Front panel cover and accessory pouch
2215	P6121 (2236)	P6202A	P6022	200-2520-00 Front panel cover
2235	P6130		A6302/AM 503	016-0677-00 Accessory pouch
2236			A6303/AM 503	016-0566-00 Viewing Hood
				346-0058-00 Carrying Strap
				016-0566-00 Carrying Case
				016-0466-00 Rack Adaptor Kit (2213/2215/2235)
				016-0015-00 2236 Rack Adaptor Kit
				035-0175-00 CRT TV Graticule
				337-2775-02 CRT Light Filter (clear)
				010-6602-00 2236 only: Tektronix P6602 Temp. Probe
400 Series
485	P6101	P6201	P6021	016-0274-00 Folding Viewing Hood
	P6106	P6202	P6022	016-0082-00 Folding Viewing Hood
	P6056		A6302/AM 503	1105 Battery Power Supply
	P6057		A6303/AM 503	016-0554-00 Rain Cover
	P6063B			016-0558-00 Rack Adaptor
	P6015
	P6009
	P6048
	P6130
468	P6101	P6201	P6021	016-0566-00 Viewing Hood (Binocular)
	P6105	P6202	P6022	016-0180-00 Folding Polarized Viewing Hood
	P6062B		A6302/AM 503	1105 or 1106 Battery Power Supply
	P6015		A6303/AM 503	378-0726-01 Mesh Filter
	P6009			016-0675-00 Rack Adaptor (468)
	P6048
	P6130
465M	P6101	P6201	P6021	016-0180-00 Folding Polarized Viewing Hood
UVSM 425 aka AN/USM425(V)	P6104	P6202	P6022	378-0726-01 Mesh Filter
	P6015		A6302/AM 503	1105 Battery Power Supply
	P6009		A6303/AM 503	040-0825-01 Rack Adaptor
	P6130
466	P6101	P6202	P6021	016-0180-00 Folding Polarized Viewing Hood
464	P6105	P6201	P6022	016-0566-00 Collapsible Viewing Hood (Binocular)
	P6062B		A6302/AM 503	016-0365-00 Protective Cover
	P6015		A6303/AM 503	378-0726-01 Mesh Filter
	P6009			1105 Battery Power Supply
	P6130			016-0675-00 Rack Adaptor
434	P6101		P6021	016-0180-00 Folding Polarized Viewing Hood
	P6108		P6022	378-0682-00 Mesh Filter
	P6009		A6302/AM 503	1105 Battery Power Supply
	P6015		A6303/AM 503	016-0272-00 Rack Adaptor
	P6120
300 Series
314	P6101		P6021	016-0297-00 Viewing Hood
305	P6149A		P6022	378-0063-00 Mesh Filter
335			A6302/AM 503	1105 Battery Power Supply
			A6303/AM 503	016-0612-00 Rain Cover (314, 335)
200 Series
212	NA	NA	NA	015-0231-00 Alligator Clip Kit
213				013-0084-01 Probe Tip to BNC Panel Connector
214				013-0096-00 Probe Tip to BNC Cable Connector
221				161-0077-01 Power Cable Adaptor Assembly
				010-0378-01 10X Attenuator Package
				016-0199-01 Viewing Hood
				346-0104-00 Carrying Strap
				016-0512-00 Carrying Case
T900 Series
T912	P6101		P6021	016-0340-00 Protective Cover
	P6108		P6022	016-0361-00 Dust/Rain Jacket
	P6062B		A6302/AM 503
	P6015		A6303/AM 503
	P6120
	P6007
T922R	P6101		P6021	016-0377-00 Viewing Hood
	P6108		P6022
	P6062B		A6302/AM 503
	P6015		A6303/AM 503
	P6120
	P6007