>There's a communications add-on for the TDS210 scope >that adds rs232, parallel, and hpib interfaces for >communications with printers and computers. That add on also works in the TDS1xxx/2xxx series ones. However there is another one you can get that works only in the TDS1xxx/2xxx ones that has the serial interface and a compact flash card slot for saving waveforms. It is not backwards compatible to the TDS2xx. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist