We keep these in the database so you can upgrade the installed base at your customers. No need to go to other sources, one tool will handle both current and withdrawn models. There are approx. 4,100 withdrawn system units in the data. The easiest way to find a withdrawn model is Quick Lookup. Enter a full or partial partnumber, a model name, or some text that would be in the one-line description or the extended description.
If you can't find a withdrawn model in the database, please use the 'Help-->Contact Us' link to request it be added.