[GreenKeys] Mag Tape Terminal

[Don Robert House]

Larry,

  I went to school in Chicago on the Mag Tape Terminal.  Those  
cartridges had to be made and ordered special.
Teletype used photocells and lamps to indicate the end of the tape,  
which was clear.. somewhat like a VHS tape.

We had a case of trouble every morning at an office in Palatine, IL  
same time every morning the tape would stop.
Made arrangements for Dick Stinson (one of the other guys so trained)  
to be there early.

You guessed it... the sun was at just the right spot to stop the  
tape.  Dick fixed the problem by covering the top
of the tape transport cover with a piece of cardboard.  He then made a  
suggestion to Teletype to darken the cover.
They did exactly that, but Dick did not even get a thank you.

I had used a logic pen in the USN to troubleshoot the AQA-5 acoustic  
display on the P-3A Orion so I did fairly well at the class.
Somewhere here I have my little graduating card.  Went to school on  
the M37 ASR in the same location.
Right next to the Chicago River in the Morton Salt building.

73,
Don K9TTY

P.S. The Navy did not like the mag tape terminal as it was not  
adaptable to shipboard use, so Teletype redesigned
it to use regular cassette tape and put it in a small Model 40 type  
case about the size of a loaf of bread.
However like many Teletype machines it must have weighed at least 40  
pounds.
Wish I had not given mine to the museum 'cause I now have a Model 40  
dial up testing station here. 300-2400 bps.


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On 1 Mar 2014, at 11:56 AM, Larry wrote:

No one seems to speak about the Teletype Mag tape terminal.  We had a  
system with a Mod 33 at our local Sears outlet store back in the  
70's.  I even went to Houston, Tx for school on it.  Boy, was it hot  
and humid down there.  Pretty neat system but of course the  
transmission speed was limited to what the modem would handle,probably  
300 or 1200 baud, don't remember. It had  a dialup model 33 attached  
to it.

Larry
W0OGH

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