In article <E1TGaxg-00009I-Tm at shell.xmission.com>,
Richard <legalize at xmission.com> writes:
On Wednesday, I'll open the cabinet and inspect
the board set inside,
but until then I thought someone here might be able to shed more light
on this.
OK, looking inside what I see is a very condensed terminal
implementation with absolutely no optional bits. No printer port, no
optional memory upgrade, firmware on what appears to be 2 UV erasable
EPROMS. While this design may have been influenced by the 4024, it
appears to be it's own design. The 4024 was multiple boards plugged
into a bus; the CT 8500 is a single board mounted on the inside of the
rear cabinet cover. The case is really quite empty housing only the
tube, high voltage board and two large transformers, presumably for
the mains power supply.
I did find a termcap entry for it, provided by a Tektronix employee;
it doesn't seem to follow the 402x escape code sequence. Perhaps the
CT 8x00 series of terminals were created entirely by the group that
produced the microprocessor development systems and not by the
information display systems group.
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