Tektronix 4115B on eBay http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=4133748396 Haven't seen more than one or two of these in years, even on eBay. No keyboard. If someone on the list has the KB, I'll buy the 4115. Yea... likely. John A. ex-User, not the seller.