Thursday, March 14, 2019

Nixdorf DSS 620 Service Manuals

eBay Seller vitesse1000 reports on 2019-02-26:

He was the seller of these 2 auctions.  (And I was the buyer, of course...)

Nixdorf DSS 620 Computer Service Manual - Entrex Key-to-Disc


The use of Nixdorf 620 systems in [European] lottery coupon processing

The seller of these fantastic service manuals has provided his history working with these systems.  We are all thankful that he remembers this, saved these images, and especially, the service manuals...thank you Brian!

Here is his own story, in his own words:


In the second half of the last century, many European countries introduced national or regional lotteries in order to raise funds to benefit good causes and charities.

Coupons were available to buy by the general public at agent locations such as tobacconists, newsagents and other local stores. Each coupon had a unique machine-readable (magnetic or optical fonts) serial number in a range of layouts depending on the games offered by the lottery operator – could be simple games of chance e.g. selecting 5 numbers out of 45, 6 numbers out of 49 etc. or based on skill and knowledge such as predicting the results of soccer matches.

All of the completed lottery coupons were returned to each lottery organisation’s central processing centre by the selling agents on a weekly basis. At the centre the coupons were microfilmed for security before passing through high speed document reader / sorters (up to 30 coupons per second / 108,000 per hour) in order to capture the betting mark and serial number data of all the punters’ coupons, which was then written to magnetic tapes.

Any coupons with read errors, such as not enough or too many marks, missing or invalid (e.g. failed check sum) serial numbers, were physically segregated by the reader / sorter equipment.

The Nixdorf 620 Key to Disc systems were used for a range of processes but mainly to access the rejected coupon data records from the magnetic tapes, load them to disc to facilitate the manual correction / verification of the data by operators visually checking each rejected coupon.

The corrected data records were then merged with the previously correctly read data to produce a master record of all coupons entering the pool that week. After the drawing of the lucky balls for a straight lottery or the completion of the soccer matches, the master record was then processed to produce winners lists for the different classes of win and the printing of payout cheques to be sent to the winners.

In the early 1970’s, I was involved with the installation and commissioning of the reader / sorter equipment and the Nixdorf 620 systems at the French lottery’s new computer centre situated in the grounds of a chateau not far from Paris Charles de Gaulle Airport. This lottery was originally setup to support French war injured soldiers but subsequently became the French national lottery. Its data processing operations were modeled on those of the highly successful Nordwestlotto, based in the German state of Nordrhein-Westfalen.

Although I was never directly involved with the German equipment, they also used Nixdorf 620’s (and later 8870/6’s) for reject coupon correction / verification.

At around the same time, the Massachusetts State Lottery introduced similar machine-readable coupons and high speed reader / sorters. They would also have had a need for reject coupon processing. Maybe they used the Entrex system???

The below images provide some visual reference to the above text.  

Click each to enlarge, or click the "see maximum size" hyperlink below each image

620 installation at French lottery – 2 of the 3 main system racks and printers

Wednesday, March 13, 2019

Sunday, January 27, 2019

Vintage Rare Entrex DG 8K Core Stack Memory Wincor Nixdorf Siemens Computer

This is probably and "archive of an archive".  An eBay auction from years gone by, archived by "Worthpoint".

Based on context, I suspect that this was from one and the same seller who currently has a very similar board on eBay, and has for the past year or so:  NRS1 (Richard DuBois).

I archive this here to keep this rare stuff documented somewhere, before it all disappears into obscurity:

Entrex 8K Core Memory Board from: 1971
8K Core Stack on 16 bit Memory Board

Nice Piece of Vintage Computer History!

This board measures 15" X 15" 
A copy of the NOVA 16K Memory made by Data General

Pulled from a Entrex/Nixdorf 480 Computer Mini Computer 
Entrex was bought out by Nixdorf Computer and Nixdorf was 
merged to Siemens Nixdorf Informations systems than later split off to 
Fujitsu Siemens Computers and later known as 
Wincor Nixdorf . 
Collectors or Teaching Item

Sold As Is * No Returns * Not for use

You'll receive the item pictured - only have one! 

Monday, January 7, 2019

Entrex Data/Scope Keystation Connector: Winchester Electronics MRE14S and MRS14P

Well, we finally figured out what this bizarre connector was, and to my astonishment, 
they aren't quite as rare as I thought!

Thank you to Dominique, for sharing this picture of the connector to your 

Entrex Data/Scope Keystation "Terminal",  from your private collection...

What a bizarre plug!

Here's where the cord comes out of the back of the Keystation.  (I believe that this id-tag is for the Keystation's power supply, instead of for the terminal itself.)

Here's the back of the machine, where it plugs into:

And the backside of the boards that hold those female "sockets":

And how it connects on the inside of the "keystation" terminal

Monday, August 20, 2018

Vintage Computer ENTREX NIXDORF SIEMENS Very Rare Collectible Advertising Sign

I've asked the seller about where, when, and how he/she acquired this fantastic item.  I received this reply:  

New message from: nrs1 Top Rated Seller(3,434Red Star)

When I worked as a tech in the final test area there in Burlington, I put it on my office wall and it was quite a surprise to all who visited. One of a kind - I think ! 

I wonder if this was a proof for a 2-page ad published in industry magazines, such as the ones we see in ComputerWorld in the early 70s, as I show in "Entrex Ads"

Very Rare Vintage Collectible Computer Advertising Sign



Sign was distributed back in 1975 as a promotion
of a small computer business Entrex in Burlington
Massachusetts that was later purchased by Nixdorf
and then finally by Siemens.
Entrex advertised that it was the best system for the cost
back in the day ... building 20 systems per month.
This is a very rare sign and sold as-is with no returns.
The sign measures 17" X 11"
A real nice piece of vintage computer history.


Friday, July 6, 2018

Vintage Large Hard Disk Head Assembly Siemens Nixdorf Mainframe NEW OLD STOCK

I am wondering if this hard disk drive head assembly could possibly be for the Entrex 480 system...or is it "too new", with the date of April 12, 1982?

Up for sale is a Vintage Large Hard Disk Head Assembly Siemens Nixdorf Mainframe NEW OLD STOCK.  This appears to be NEW OLD STOCK. look at the pics. Seems like it was headed back to Siemens Nixdorf as that was where it is addressed on the box. If you know who makes this let me know. Look at all pics and offer accordingly.



Tuesday, April 10, 2018

Monday, March 26, 2018

ENTREX / NIXDORF COMPUTER 8K core memory board & stack 480 16 bit 15" (PL-62-45-01391-000)


eBay Auction Archived   Bidding History   Bidding Details

ENTREX INC. / NIXDORF COMPUTER (Burlington Massachusetts)
8K core memory board & stack
Pulled from a retired Entrex / Nixdorf Model 480 System
15" X 15" 16 bit Data General Nova Base Board from the mid 1970's
Date codes on most of the IC's are 1974.
The sticker on the back indicates it was inspected by quality assurance in 1975.
Memory Board is 15" X 15"
Chances are the stack was made by EMM but didn't want to remove the cover.
It probably still works but there is no way to test.
32 Data Terminals were connected to the 480 system running with 4 of these boards.
The hardware & software was incredible to maintain data transfer
of 32 keypunch operators typing all at once on just 32K of memory.
A very rare find & real nice piece of vintage & early computer history.
Being sold as is with no returns due to the age.

Friday, March 2, 2018

Vintage Nixdorf Entrex Mini Computer Mag Tape 280 380 480 System Collectible

eBay Auction Archive

Here we have a very collectable "Magnetic Tape" that was used on the ENTREX & NIXDORF

16 Bit 280, 380 & 480 Mini Computers back in the early 1980's.

This is a brand new unopened 200' tape that was used to backup data and programs way back in the day.

Very rare and hard to find still in the unopened factory sealed package.
The tape has a date code of 8521 - 1985 21st week  (33 years old).

It has a yellow "write ring" in the back to enable writing or if you remove the label it was write protected.

The black piece on the top of the tape is the locking dust cover and had a hook on it to hang it in tape storage units.

Very nice and interesting piece of vintage computer history. 


Sunday, January 28, 2018

Limited Edition Serigraph Print "Entrex Building" by C.J. Yao!

Well, it's not about any Entrex system, per se, but it is likely a picture (or painting, if you can believe that) of the Entrex building in Massachusetts back in the day.  It seemed mildly worthy of historical archive on this site, anyway...

eBay Auction Archive          Bidding History?          Bidding Details?

We have the limited edition serigraph print "Entrex Building" from the incredible artist C.J. Yao up for auction!

Wednesday, May 17, 2017

Vintage Entrex 480 DCC D116 mini computer, DG nova clone

In the words of the original seller of this auction, May 2017:

Vintage Entrex 480 Mini Computer

There is not a lot of information in regard to this computer on the internet although  google search will net some information.   

This is the computer component of a larger Entrex data entry system from the early 70s.  This CPU is based on if not build by Digital Controls Corporation(DCC).   

It is physical appearance if very similar to the DCC D-116 (see the last photo).  Indeed it contains a DCC CPU board and a DCC Synchronous communications controller board.  

It also contains a Entrex Disk controller board and an Entrex Tape controller board.  

Finally it has 4 Entrex Core memory boards of 8K each.   Most likely a very rare computer.