[GreenKeys] M33 Mystery UCC

[Jones, Douglas W]

On Jun 9, 2016, at 11:25 AM, teletypeparts at comcast.net wrote:

> I have seen the UCC-5 which was used with a 32 ASR in private wire or early computer applications and of course the UCC-6 for 33 private wire and computer use.

I have DEC's documentation for the modifications they routinely made to teletypes that were sold for use with DEC computers.  Nowhere does it say what call control unit is used, but the (very grainy) photos all show a UCC-6 as the base to which they added their reader-run relay.  (They also document conversion of the TTY to operate on 220VAC, 50Hz.)
Both of the model 33's I have access to, both of which were used with PDP-8 computers, definitely sport UCC-6 call-control units.

		Doug Jones
		jones at cs.uiowa.edu