[GreenKeys] PERFECT EXAMPLES OF MYSTERY BOXES.

[Wndrrt at cs.com]

I went by ebay today and saw more mystery boxes: HAL Communications Terminal 
CT2200 and Dovetron Tempest MPC-1000T II RTTY Terminal Unit.  I have heard the 
name HAL before.  Is this a famous name in RTTY?  Dovetron Tempest sound 
impressive I think, but what does MPC stand for.  Did someone earlier talk about a 
ST 6000 or something?  Do some have loop supplies?  Do some only receive and 
others only send?  If you could make a list of the top five TUs what would 
they be?

Well, anyway, still lots to learn.
Thanks,
Jan