Another Electronic Teleprinter for the collection

[M1ECY]

IMG_20191026_190709_555.jpg

Seems I have another machine for the collection

This is a BT Merlin Super Cheetah.

I have all the original documentation, and service manuals, and this is a complete system, Keyboard, and printer

Works on V.21 for line connection, so I need to figure out how to get this onto I-Telex

It's a pretty soulless thing, but nice to find a British Electronic machine that might just work.

The PSU is full of lovely Rifa Dragons, so there will be little testing until I have replaced these.

[DF3OE]

For I-Telex you will need a modified analogue modem board.
Not to throw away the unfortunately now useless modem boards we modified them for use as V.21 teleprinter ports. But only one port per board.

[M1ECY]

Okay Henning, I feel an order coming on

[M1ECY]

Power supply now out on the bench - given the relatively small number of capacitors on this supply, I will replace all of them, some of the electrolytic units are showing signs of distress, with the tops noticeably bulging.

Hopefully this will make the supply reliable for another 30+ years.

The back up battery for the memory had not been removed prior to storage - this is a problem, they have leaked and have contaminated the rear of the main PCB, as well as caused some corrosion of the communications sockets to the rear of the machine - this will need some careful cleaning to stop any further deterioration.

More pictures to follow later today

[dk6zk]

That doesn't look like a telex machine anymore, more like a PC!

[M1ECY]

hi Rainer,

Yes, it is very similar to a PC, the design is quite close, but the electronics are certainly not

I cannot post too much here - Henning will ban me for lack of gears and motors

[DF3OE]

I cannot post too much here - Henning will ban me for lack of gears and motors

No worries Sean. I am curious if the machine has got a printer at least.

[M1ECY]

Hi Henning, yes, this machine has a printer - As soon as I have the power supply board finished, I will post some better pictures of the complete system.

[tw137125]

Hi Sean,

nice teleprinter. The monitor looks like an old qume terminal.
Is there a microprocessor in the teleprinter or has the system special integrated circuits like in the siemens t1000 teleprinter ?

Please provide more photos.

Regards
Thomas