I see my attempt at formatting the directory listing didn't work :(
I captured ROM images from the CPU and all the Option ROMs back in 2000 when I bought my 4041, I'll be uploading those ROM images to my github repository later today.
4041 Program Development ROMs 1 and 2
4041 Graphics ROM
4041 Plotting ROM
4041 Signal Processing ROM
4041 Utility ROM #1
The Utility ROM has an interesting feature "PROM File System" and says the user can build a PROM from files on a tape. If the PROM contains an AUTOLD file, PROM0 will become the SYSDEV device to boot the system.
Here is a doc I wrote in 2000 about capturing the ROMs and what ROM carriers Tektronix used. Looks like I ordered some sockets and carriers - but I don't know where they are after all this time :(
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TEKTRONIX 4041 OPTION ROMS – Oct 2, 2000 mcm
I got two Tek 4041 GPIB controllers. Both had the programming ROM set. One had four other option ROM sets: 4041R01 Graphics, 4041R02 Plotting, 4041R03 Signal Processing, and 4041R04 Utility – all labeled Version 2.1
The Option ROMs were in 24pin Molex Low-insertion force carriers P/N 8878 24-D, the ROM tray used Molex 8878 24S sockets. Neither of these parts could be found on an internet search. I went to the Molex website and found they still make 24 pin LIF carriers 50-39-5248 and matching sockets but I couldn’t find any in stock in internet electronics distributors. The 28 pin versions were in stock and around $2.50 a mated set at Carlton-Bates, so I ordered 6 sockets 15-29-9282 and 16 carriers 50-39-5288.
I used a Dremel to modify one 28 pin socket (pulled out two contacts at pins 13 and 16 and then Dremeled a groove on each side to accept the Tek 24 pin carriers. The carriers have one notch on the pin 1 end and two notches on the pin 12 end.
The Graphics ROMs were Motorola 68766C35 24pin 8Kx8 EPROMs.
Using my Data I/O Model 29B /w Unipak2 – Family 25/Pinout 29, I read each EPROM and transferred the data to the PC. Set Translation Format to 83 so they can be loaded into PC with DEBUG.COM HEX files can be loaded with DEBUG. TXT files are in the default Data I/O format 81.
‘Left ROM’ Checksum ‘Right ROM’ Checksum
Part Number Part Number
Graphics ROMs B020801 160-1755-01 96F5 160-1756-01 2071
Plotting ROMs B010807 160-1889-00 4D5F 160-1890-00 1938
Signal Procesn B010818 160-1984-00 4057 160-1985-00 945E
Utility #1 ROM B020781 160-2221-01 1034 160-2222-01 721B
The pgm dev ROMs were also 67866C35 EPROMs:
Pgm Dev ROM1 4041F30 160-1246-03 C533 160-1247-03 C915
Pgm Dev ROM2 4041F30 160-1335-03 7760 160-1336-03 EB34
The other 4041 had Pgm Dev ROMs version 2.0
Pgm Dev ROM1 4041F30 160-1246-02 C34E 160-1247-02 C250
Pgm Dev ROM2 4041F30 160-1335-02 5D6B 160-1336-02 C8DE
