Floppy Days Vintage Computing Podcast
Floppy Days 59 - The HP41C Calculator, Part I, History with Richard Nelson and Gene Wright, at http://floppydays.libsyn.com/webpage/2016/05
and #60, Part II on the HP-41, at http://floppydays.libsyn.com/webpage/2016/06 which Randy started with my six-minute recording which he requested about how I got into using the HP-41cx as a controller for automating processes on the workbench