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Siemens T-100 → ← T-37
Electromechanical teletypewriter · 1951
T-68 was an
electromechanical teletypewriter (German:
Fernschreiber), introduced in 1951 by
Siemens & Halske in Berlin (Germany).
It prints directly to a (gummed) paper strip and was available in
various models and has a built-in TCD.
It was the first German teleprinter to be introduced after WWII.
At the time it was one of the most complete and compact teleprinters.
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The unit measures just 32 x 40 x 39 cm and weights approx. 20 kg.
Unlike many of its predecessors, which printed directly to a paper roll,
the T-68D printed all text as a single line onto a gummed paper strip, making it
ideal for the transmission and reception of telegrams.
The T-68D was also a popular terminal for cryptographic equipment (cipher
machines) of the same era. It was used with a variety of
cipher machines,
such as the Philips Ecolex IV
that was used for the early 1960s onwards by the Dutch Army and by
several NATO counties.
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The T-68D was available in several models: with a telephone dial,
for connection to the teleprinter network (telex), suitable for connection
to a radio, with 2-wire of 4-wire interface and with a single or a double
strip printer. The civil version was generally beige, whilst a black one
was available for military use. The latter was usually stored in a green
box.
The T-68D was succeeded by the T-100
which arguably became the most successful Siemens teleprinter ever.
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Receiving an i-Telex message
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This clip on the right shows German amateur radio operator DF2AR
receiving a message on his black T-68D teleprinter, via the
i-Telex network.
i-Telex allows vintage teleprinters to exchange messages via the internet. The clip shows how the message is printed on a paper strip,
whilst the device simultaneously punches a paper tape.
Source
YouTube, DF2AR
Date
31 March 2019.
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Device Teletypewriter (Fernschreiber) Purpose TTY or RTTY communication Model T-68, T-68i Manufacturer Siemens & Halske Years 1951-198? Predecessor T-37 Successor T-100 Encoding ITA-2 (Baudot) Bit rate 50 (45.45) baud Printer Type wheel, strip WPM 60 (66) Line 60V, 20mA, single-current Mains 220V AC, 50Hz Colour Black, beige Dimensions 400 × 320 × 390 mm (HWD) Weight 20 kg Quantity ?
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- Paper strip printer
- Built-in tape reader
- Built-in tape puncher
- Integrated TCD
- Local mode (off-line)
- 1 or 2 paper trays
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- 2-wire or 4-wire interface
- Single or double strip printer
- Telephone dial (TW) or half-duplex switch (HW)
- Beige or black case
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- T-68
Fernschreiber T68 Teleprinter T68 Streifenschreiber T68 Strip-Writer T68
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© Crypto Museum. Created: Saturday 07 April 2012. Last changed: Sunday, 08 September 2024 - 08:43 CET.
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