Randy, If you haven't checked already, we have quite a few posts on Tektronix 4051,4052 and 4054 including repairs on vcfed.org in the "Other" forum.
I have recovered lots of old 4050 program tapes and posted them to my github repository: https://github.com/mmcgraw74/Tektronix-4051-4052-4054-Program-Files If your 4051 includes the RS-232 option in your ROM backpack, you can download the programs from a PC serial program like Realterm to your 4051, once you get your 4051 repaired. I just repaired my 4054A, which stopped clearing the screen when I pressed the PAGE key or ran the PAGE command. I found that the problem was the one-shot IC on that circuit had died and had to be replaced. If your problem is on the display board - it is easy to access with the cover removed. Monty On Sat, Sep 26, 2020 at 2:12 PM Randy Dawson via cctalk < cctalk@classiccmp.org> wrote: > 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 >