[TenTec] Pegasus USB control

[WA3FIY@radioadv.com (WA3FIY)]

    OK..............I'm not ready to give up just yet but I'm getting close.  
    Has anyone here successfully used a USB to serial converter to 
    control the Peg or Jupiter?  So far I have tried 4 different units 
    from cheap to expensive, from very basic to multifunction and all 
    "almost" worked in different ways.  My regular serial port works 
    just fine and the USB port seems to work OK since both my 
    keyboard and mouse are USB and I've never had a problem with 
    them.
    
    It seems I read somewhere about a suggested unit but I can't 
    find any leads.
    
    -Lee-