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From: David Wade <g4ugm@dave.invalid>
Newsgroups: comp.misc,alt.folklore.computers
Subject: Re: the early teletype
Date: Mon, 18 Nov 2024 14:49:57 +0000
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On 18/11/2024 14:11, Carlos E.R. wrote:
> On 2024-11-15 21:23, Charlie Gibbs wrote:
>> On 2024-11-15, Scott Lurndal <scott@slp53.sl.home> wrote:
>>
>>> "Carlos E.R." <robin_listas@es.invalid> writes:
>>>
>>>> On 2024-11-15 00:11, Charlie Gibbs wrote:
>>>>
>>>>> Damn, the things one remembers...
>>>>
>>>> They were in use at my time, somewhere, but I never saw one. Faxes were
>>>> what they used.
>>>>
>>>> Did teletypes use phone lines, with an audio coupler? Or dedicated 
>>>> lines?
>>>
>>> Yes.
>>>
>>>   (both)
>>
>> Well put.  :-)
>>
>> Common dial-up services were Telex (Baudot, typically with Teletype
>> model 32s, although a PPOE used a Siemens machine), and TWX
>> (Teletypewriter Exchange), which ran ASCII, typically on Teletype
>> model 33s.
>>
> 
> I suppose an operator had to type directly at the machine. Or, was there 
> a method to type at some kind of offline machine, then take over 
> something, like perforated tape?
> 
> 
Well if your machine had a punch you could prepare a tape off-line , and 
then send full speed when you had it ready and checked. In the UK Creed 
did produce "perforators", so a keyboard with a punch so I am sure 
Teletype did in the USA

https://www.radiomuseum.org/r/creed_keyboard_perforator_type_44.html

Dave