[NJARC] Teletype Model 33 Information Needed (and help)

[John Dilks K2TQN]

Hi Steve,

The 33 I think is a 20 ma. loop  It could be keyed by a Processor 
Technology 3P+S interface board with a S-100 bus computer.

In early 1976, when my IMSAI was new and I didn't have a printer, I 
used my ham radio 60-wpm Model 15 TTY, 60 ma. loop through an ASCII 
to baudot software converter I wrote.  It worked great and I used it 
for several months until I bought a used ASCII printer.  A few of my 
friends used their 15-TTYs with my converter.

My monitor was an old Burroughs 12 line x 80 character terminal that 
was "polled".  I couldn't break the encryption to un poll it, so I 
cut the ASCII keyboard output and ran the keyboard output to the 3P+S 
parallel in and echoed it back to the terminal with the parallel 
out.  I ran the terminal in the local mode.  It worked good enough 
for me to use it several months, until I bought a Lear-Sigler 
terminal kit and wired that together.

The IBM Selectric had to be modified with small solenoids to activate 
the key mechanism, as I recall.  One vendor sold a kit for about $400.

My first dot matrix printer was a TI-810, that cost me $1800 
(wholesale).  It was 5x7 matrix with no descenders for lower 
case.  But it was fast.  It was a long time until I tossed that out, 
beings it cost me so much.

I still have my IMSAI, serial #52.  They were the days.

I went to talk to that group one day at InfoAge, but they were real 
busy getting set up so I left them alone.

Great fun, computers were, in 1976.

73, John Dilks, K2TQN

At 07:12 PM 2/18/2007, you wrote:
>Visit our web site - See http://www.njarc.org
>_______________________________________________
>Hi,
>The Computer people at InfoAge want to get a model 33 in service as a page
>printer for some of the old computers. This is just the way it was done in
>the 70s if you weren't converting your IBM Selectric for use. Remember how
>bad dot matrix used to be?
>
>I am looking for a set of manuals and if you know the machine some help. I
>will be setting up a model 33 clinic day once we get the books and any help
>that's available. I haven't worked on a teletype machine in about 30 years
>so any more recent experience would be appreciated. Possibly we could do a
>couple of machines if there is interest.
>
>Thanks,
>Steve Goulart
>732-749-3318
>732-371-6116 cell
>
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