telexforum

This evening a museum dropped this machine off with me for test/repair.

This is a British machine, and as far as can be seen operates using something close to RS232

Any suggestions regarding generating a signal source for testing would be appreciated

I-Telex, TW39 Serial unit, TW39 Interface supports MTK2 Cyrillic baudot code?

which modules use =30V and =120V(~12V) power?
Can remove this power rail?

Ich habe ein PTA-80-Telegraphengerät. Ich habe es über RS-232 an meinen Computer angeschlossen. Derzeit habe ich kein Geld, um die auf der Website angebotene Hardware zu kaufen. Kann ich mich über ein Programm irgendwie mit Ihnen verbinden?

For some odd reason, when my Lorenz Lo-15c receives the WRU symbol, it prints the Maltese Cross on the printer paper, but does not trigger the Answer back drum.
Sequence of events:
Pressing either the Here is button on the front of the keyboard, or pressing down on lever F triggers the Answer Back sequence.
This is a short video of the two levers at the base of the printer. One (A in the .pdf file) moves as it should. The other does nothing.

So, now where do I look as to why the other lever does nothing?

Jeff

Hello. Apologies in advance for the relatively basic questions!

My FS220 and V.10 interface have been serving me well for the past six months or so (huge thanks to Sean for the V.10 card), however a potential problem has arisen in the past few days for no obvious reason. When I power down the FS220, the fault light briefly flashes (for about 200ms) before the device turns completely off. It powers back up again with no issue, and seems entirely operational, however I'm worried that this is abnormal, and I don't have the expertise or confidence to triage it further. Nothing has significantly changed since it started exhibiting this behaviour, aside from moving it from one desk to another in my house. It's rather light (about 50kg), so I can't imagine it got internally damaged from the move, however nor can I be certain that this behaviour wasn't present before moving it and I just never noticed.

Any diagnosis tips? The manual terms the light a collective fault indicator , suggesting...

As some of you may have found out the hard way, the little springs on the answer back drum are next to impossible to find.
I found this out the hard way when I launched one into orbit accidentally trying to reprogram my here is code.
I got to thinking, Surely I can use an o-ring for this.
mykin.com sells o-rings. So I ordered 50 of them. Standard AS528-016. 1/16 x 5/8 made of silicon.

Then installled them on the answer back drum.

Of course, nothing is as simple as it seems. :whack: First time, I had the tabs facing the wrong way so they missed the contact levers.
Then I had the code wrong. Third time's a charm. My here is reads 76470 jeff tx now.

Bending a small J-hook in a paper clip made inserting the tabs very easy. Lift the o-ring up out of the way, insert tab and let the o-ring back down.

And here is an easier version of the chart to read. Answer Back Coding.pdf

Hope this helps.

Jeff

After about 5 years of down time, I finally got my Lo-15c clean and shiny again.
*grins* Hasn't looked this clean since 1963 probably.

So, next step, connect everything again and see if it works.
First off, there's an extra part laying on the bench. I have no idea what is or where it goes.
Mystery Part

Secondly, when I press the LT button on the Call Control Unit, it runs open. I noticed a open resistor by the selector wiring.
Disconnected

Any help is welcome.

Jeff

While taking a break on another project, I drew up a schematic diagram of the interconnection panel for the full size Lorenz cabinet for the Lo-15b and c models.

Jeff

Hallo Leute,

Nach langer Zeit habe ich mir mal wieder dem T1000 gewidmet. Anfangs hatte ich das Problem daß der Drucker sich aus der Anfangsposition nur um ein Zeichen nach rechts bewegt hat. Als ich dann mal den Zahnriemen gelöst hatte, habe ich festgestellt daß der Schrittmotor der den Drucker bewegt gegen einen Anschlag läuft. Ich konnte den Motor manuell gegen den Uhrzeigersinn drehen, aber nach ein paar Umdrehungen lief er wieder gegen einen mechanischen Anschlag.

Danach habe ich den Fernschreiber mal eingeschaltet, ohne daß der Zahnriemen gespannt war. Dann hat es im / beim Schrittmotor geklickt und er lief uneingeschränkt entgegen Uhrzeigersinn (quasi um den Drucker nach links zu bewegen). Nachdem aber Spannung aus bzw. Lokalbetrieb aus war, konnte ich den Motor von Hand wieder nur ganz eingeschränkt zwischen zwei mechanischen Endpunkte bewegen.

Ich habe schon das Servicehandbuch studiert, aber nirgendwo finde ich etwas von einer (elektro-)mechanischen Freigabe um über die...

Hi everyone,

could someone send me a quick telex on 472426 to see if my incoming connection to PiTelex is functional?

Thanks,

Graham.

Hello,

I have recently bought a TeKaDe FS-220(Z) with the impression that it would support V.10 out-of-the-box, as indicated on page 43 (31) of the manual . However, when it arrived, it only seems to have the arcane ADo8 interface , for which I can't find much information; it seems to be something from the pre-T.A.E. era . Nevertheless, I would still like to use V.10 to connect the TTY to my computer (Gentoo Linux), by converting the well-documented signal (EIA-530) to an RS-232 interface , which can then be converted to U.S.B. with the CH340 (supports five-bit character encoding) chipset .

Does anyone know how to use the V.10 interface with the FS-220 ? I was looking at ---the same vendor from whom I purchased the TTY---however I am very unsure at this point.

Thanks,
Ashley.

(ADo 8 sub-heading)

Hi All,

Seeing as there is some extra interest in the I-Telex System from other UK based Teleprinter owners, I have converted some of the original German Language manuals to English.

I claim absolutely no expertise in these translations - they were all carried out by machine, so may have some errors in translation. However, i have had a quick read through the documents, and I think the majority of the translation is good.

As time goes on I will collect any other I-Telex documents and convert them - they will all be uploaded in this thread.

If you are new to I-Telex, and have any questions, please feel free to ask - if I cannot answer them, I am sure that some of the other members can.

Cheers
Sean

One of the items required for Telex operation, that normally is not needed for RTTY is known as a signalling unit (in the UK) or an FSG in Germany.

These are very rare in the UK, I have only ever seen a handful of them, and all but 1 are in a museum.

So, for the UK teleprinters a problem exists - what to do when you cannot find one of these units?

Fred has written FSG - O - FSG firmware for the TW 39 cards - will this also work for the Double Current cards?

Is there a way that the interface card could provide switching of a relay to control the power to the machine?

Or, a more ambitious project, using the attached document, is there a way that the signalling unit could be simplified and made using modern components?

Hallo Zusammen

Ich habe zur Zeit 2x T100 auf dem Tisch. Der eine hat Kabelprobleme, und das muss ich mal untersuchen.
Der zweite ist schlimmer, weil mein Empfangmagnet unterbrochen ist. Hat einer von Euch vielleicht so ein Ding zu verkaufen?

Grüsse
Nico

In my Teletype 33ASR (Teleprint version) I have an unidentified PCB.

The card is marked BS292 on the sticker, on the back of the card there is a text ”TZ-197”

The Orange/White cable goes to Connector 1, cavity 6
The Grey ones goes to connector 12 on the motorcontroller BS263 and other places as well
The Purple/White one goes to connector 6 cavity14, connector 1 on the tape reader card, and some more places as well
The Blue cable goes to Connector 1, cavity 1

Can anyone Identify it, and possibly have a schematic, or identify the white the white component marked ROTA ELEKTRIK?

Hello!

I'm happy to discover that there is a community which sees the beauty of old teleprinters.

I was donated two ( fjernskrivere in norwegian) teleprinters yesterday. One Siemens T.typ.37h (Fs Sk 2176/10) and one Siemens Fernschreiber 100 (L 22211-A100-G478).

The first thing that came into my mind, was to connect it to a Raspberry Pi with a homebrewed (or bought) serial->current loop interface, and make python program to fetch twitter/email/whatever and print it out.
After looking around on your webpage, i found out its more into it than that. Since its twenty years since i had german at school, i just understand pieces of the information.
I would be very thankfull if someone in the forum could kick start me on what my options are.

BTW: I dont have TW39.

73,
LA5WRA, Tobias.

The Functional Description and Parts List of Lorenz Dialing Box FZGT 564 in a bilingual version (German/English)
Lorenz FZGT 564 bilingual.pdf

Fernschreiben mit RFT Geräten_russisch.pdf

Now that I have lots of connections working, I thought I would have a look at the T68D I purchased from Henning earlier this year.

I carried out the recommended lubrication (basically drown anything that looks like metal on metal contact with fresh oil and leave to work in)

I also replaced the suppression capacitor earlier this year.

I have connected the machine to my system, and tried some local connections.

Anything I type is received correctly on the distant machine, anything received from the distant machine is printed correctly.

The strange problem is that anything I type on the T68D is not printed on the tape, or punched correctly.

I guess this is some sort of adjustment problem, bur crumbs, there's a lot of stuff in there that looks adjustable. SO before I wade in and make a complete mess of everything is there anywhere I should be looking for a common problem?

Hi All,

I am certain that this is covered in a manual somewhere, but I will ask the question in English here.

I now have 4 working I-Telex compatible machines, but at present only one active connection.

So, what I want to know is, how do I set these extra machines up as either an extension to my normal number, or can I assign these machines a different number that will allow I-Telex to route the call to the correct machine?

Apologies if this has already been covered here somewhere before

Cheers
Sean

Dear all,
here is a new version of the ethernet-firmware for systems with 45 baud machines .
This version also supports the US-characterset (instead of ITA-2).
Here is the download path:

www.telexupdate.de/ethernet/update-us45.zip

In case of any question, please ask per PN at first to prevent blasting up this thread.

Best regards,

Fred

A very long shot.

Has anyone here come across these before?

As far as I can tell they are for converting from the later UK PSTN type connection (Possible V.21) to Double Current.

Any information will be helpful

Hi
I've just laid hands on a Swedish Philips PACT 200, and I have no clue what to do with it. I have a dutch manual, for a PACT 220, downloaded from this forum, but it doesn't help me much. I would like to do some kind of self test.
The machine starts up, but the only response I get from it is paper feed and alarm when I lift the paper feeder lid.

I've measured internal voltages, seen by the fuses in the picture, and they are ok within a volt or so.

My goal is to use this as a serial terminal, connected to a computer. Also connecting to someone over the internet would be fun.

Where do I start? I am a hardware developer , so I have access to a lot of electronics equipment.

Jochen and I are restoring a Teletype Model 14 Typing Reperforator , receive-only version. This unit was manufactured in the United States approximately from 1926 till the end of the 1940s.
The motor unit is currently under maintenance in a mechanical workshop.
In autumn I will report about this excursion to the history of teleprinting machines and pictures will be presented.

Verifiable owners of Model 14 please get in contact with me if you are looking for the service manual of this teleprinter (typing and non-typing version).

best regards