jay@metran.UUCP (Jay Ts) (03/31/91)
Hi! I have recently aquired a Lear Siegler ADM-3 terminal. Date of manufacture: July 1978 (printed on the CRT's backside) Serial number: 40478. Note that this is the ADM-3, not the 3a, and is UPPERCASE ONLY!!! Does anyone know where I can get the ROM for the lowercase character set, so that I can upgrade it to a 3a? (I'm sorry if I'm a little late making this request :-) It seems that there must be thousands of nonoperational ADM-3a's sitting around in basements and closets around the world. Perhaps someone can "liberate" a lowercase ROM for me... As I understand it, the lowercase ROM is socketted and is on the PC board near the brightness control knob. Upgrading the ADM-3 to the 3a involves putting in the ROM and flipping the lowercase enable DIP switch near the back of the PC board. --> Someone please correct me if I'm wrong. <-- Also, I was aghast to find the adm3 terminfo entry on UNIX Sys V/386 does not handle curses well! vi, for example, has to use open mode. Now, I seem to recall being able to use a screen editor on a UNIX 32V system with an adm3a sometime in 1981, so it is/was possible, *right*? Did we lose something from UNIX between versions 32V and V 3.2? :-) In case you haven't figured it out by now, I was given this terminal for free, and have been having a lot of fun getting it to work. ... And you just can't beat the ADM-3's classy, futuristic-looking two-tone blue fiberglass enclosure. Or having to use CTRL-H to backspace and CTRL-I for tab! :-) Jay Ts Please use this email addr -> uunet!pdn!tscs!metran!jay P.S. This is NOT an April Fool's joke! I'm serious!!!
gwyn@smoke.brl.mil (Doug Gwyn) (04/01/91)
In article <4@metran.UUCP> jay@metran.UUCP (Jay Ts) writes: >Does anyone know where I can get the ROM for the lowercase character set, >so that I can upgrade it to a 3a? I think there is more required than just that. I have an ADM-3a at home and also the technical manual for it, so if I remember to look it up I could check on this. >Also, I was aghast to find the adm3 terminfo entry on UNIX Sys V/386 does >not handle curses well! vi, for example, has to use open mode. Now, I seem >to recall being able to use a screen editor on a UNIX 32V system with an >adm3a sometime in 1981, so it is/was possible, *right*? I don't think the ADM-3 was able to do much more than emulate a "glass KSR-33" except for the addition of direct cursor addressing. Many screen-oriented text editors require features such as erase-to- end-of-line, which the ADM-3 may not have had. I will say that the ADM-3(a) terminals were marvels of logic circuit design. Every function was accomplished by hard-wired logic, not by a microprocessor. However, they didn't provide anywhere near the functionality of more modern terminals.
carlson@mrx.webo.dg.com (James Carlson) (04/02/91)
I've got an ADM 3A at home cluttering up my bedroom. You're welcome to it ... though it would be nice for you to pay shipping ;-} The vertical sweep has gotten very non-linear in its old age, but it still works ... -- Disclaimer: My company neither knows nor cares what I say. .//.
jedelen@slate.mines.colorado.edu (Jeff Edelen) (04/10/91)
In article <15658@smoke.brl.mil> gwyn@smoke.brl.mil (Doug Gwyn) writes: >In article <4@metran.UUCP> jay@metran.UUCP (Jay Ts) writes: >>Also, I was aghast to find the adm3 terminfo entry on UNIX Sys V/386 does >>not handle curses well! vi, for example, has to use open mode. Now, I seem >>to recall being able to use a screen editor on a UNIX 32V system with an >>adm3a sometime in 1981, so it is/was possible, *right*? > >I don't think the ADM-3 was able to do much more than emulate a >"glass KSR-33" except for the addition of direct cursor addressing. >Many screen-oriented text editors require features such as erase-to- >end-of-line, which the ADM-3 may not have had. I think the biggest difficulty was the lack of a "reverse line feed" sequence. Without it, you couldn't open a line at the top of the screen as you need to when moving up through your text (dropping the bottom line and adding a new top line). --Jeff