On Oct 31, 2009, at 9:07 PM, Jesse Lackey wrote: > my TDS 220 doesn't have a serial port, or anything that could be be > even possibly related. Just the front connectors/buttons that are > all scope functionality related and AC power input. > > Am I missing something? Was this an option on some models? There's an add-on communications board that includes serial, parallel (printer, IIRC) and HPIB (!) TDS2CM http://www.teknetelectronics.com/Search.asp?p_ID=13987&pDo=DETAIL Alas, it's priced like an HPIB peripheral :-( More recently, Tek seems to have wised up and noticed that a serial interface is practically free if your box already contains a microcontroller, and USB adds about $5 for one of those FTDI chips, and HPIB doesn't need to be included by default. BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist