Hi Al, Fantastic! Your work here has always been the best, and the Tektronix graphics documents, as a subject was on target. I have a Tek 4051, and, its gathering dust. I need to fix a broken trace blanking, but this thing is hard to get into. Its going to be lay it out on the bench for scope probing. Thanks Al, for the post, Randy
________________________________ From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Al Kossow via cctalk <cctalk@classiccmp.org> Sent: Friday, September 25, 2020 2:05 PM To: General Discussion: On-Topic and Off-Topic Posts <cctalk@classiccmp.org> Subject: Tektronix PDP-11 Signal Processing System BASIC 1980 Just recovered these RX01 diskettes today ca. 1980 http://bitsavers.org/bits/Tektronix/SPS_BASIC manuals http://bitsavers.org/test_equipment/tektronix/wdi