Re: Data General Terminal Question
I am not aware of any 'standard' Data General CRT terminal with a model number greater than 1400 - but I recall the 52xx model numbers were used for special custom, hand-held wands, scanners and "mini-terminals" that may be connected to a standard DG terminal or keyboard. Just send a picture of the terminal front and back (especially the model and part information plates) to me off-list so I can better help you... Bruce Bruce Ray Wild Hare Computer Systems, Inc. Denver, Colorado USA b...@wildharecomputers.com ...preserving the Data General legacy: www.NovasAreForever.org On 9/10/2021 1:50 PM, Mike Nealey via cctech wrote: Hello all, I have a Data General Model 5220 MT terminal I picked up recently. Sadly, no keyboard. I am trying to find out if the terminal will use a standard AT keyboard (based on the connector) or if I need to find a special DG keyboard. Any help is appreciated.. in fact any information about this device is appreciated.. I’m finding nothing about this terminal on the interwebs! Thanks!
Data General Terminal Question
Hello all, I have a Data General Model 5220 MT terminal I picked up recently. Sadly, no keyboard. I am trying to find out if the terminal will use a standard AT keyboard (based on the connector) or if I need to find a special DG keyboard. Any help is appreciated.. in fact any information about this device is appreciated.. I’m finding nothing about this terminal on the interwebs! Thanks!
Re: HP 5061-3476: Which boards go where
Further review: Looking at photo IMG_6081.jpg it shows the layouts of the boards. Specifically A1 is the pre-regulator board pn 5061-3457 which is the one with the caps and A2 is Inverter board PN 5061-3454. I think if your PS doesn't work one problem is these boards are backwards. Don't know if that will blow up your supply but interesting to note... Hm From what I can see it looks like the 120 goes into a transformer on the bulkhead and is stepped down to 24 volts DC which then feeds "stuff". I'll start there and see if I get 24dc at the first stage, which should then be filtered by the caps and sent on to the various regulators. C On 9/10/2021 11:41 PM, Chris Zach via cctalk wrote: Hi Guy! Thanks for the post and interesting. No it's not quite the exact power supply but close. However Are you *sure* those cards are in the right slots? Reason I am asking: When I look at the HP docs they label the Pre-regulator board as A3A1. A3A1 also has the red LED. The inverter board (the one with the transistors and transformers) is A3A2. Likewise the battery charge boards are A3A3, A3A4, and the control board at the end is A3A5. The slots are labeled 1-5 with 1 being closest to the power cord and 5 being on the output end. A3A5 will only fit in slot 5, and A3A4 has the 12 volt trim pot that is accessible outside the supply by a cut-out so it has to be in slot 4. Slot 3 is not used on my unit because I don't have the battery backup circuits. However in your picture slot 2 has the LED preregulator board and slot 1 has the one with the transistors and transformers (inverter). So either your picture has the parts backwards or someone at HP should go to hell for exceptionally bad numbering. Does your supply work? C On 9/10/2021 12:43 PM, Guy Dunphy wrote: Here are some disassembly pics of a HP 5061-6615 power supply. http://everist.org/pics/hp1000_ps/5061-6615.zip 2.9M Details: HP 1000 Model 2113E SN 2340A03701 OPT 004 014 power supply Model 5061-6615 SN 2340 Not the exact same PS as yours, but it might help? My problem is I haven't been able to find a manual and schematics for that apparently late model supply. Though last time I looked was years ago. The lack of a manual/schematics froze that restoration project. Can anyone suggest where I might find a copy? PDF, or I'd pay for an original paper copy. (To use, and also ensure it's scanned in high quality.) Guy At 09:30 PM 9/09/2021 -0400, you wrote: Quick question: I've been cleaning out and repairing an HP5061 supply for a 1000 computer. However I didn't take a picture of the 4 boards when I pulled them and I want to make sure they go in the right places. From the manual (page 99 of 92851-90001_Sections-IXB_Mar-1981.pdf) the slots are labeled A6-J1 through A6-J5. Does this mean that: J1 is the J5 is the control board (A3A5) J4 is a jumper board for +12 adjustments J3 is unused (battery backup boards) J2 is the inverter board (A3A2) J1 is the pre-regulator board (A3A1) Seems right but I know how bad things can go :-) Thanks! C
Re: HP 5061-3476: Which boards go where
Hi Guy! Thanks for the post and interesting. No it's not quite the exact power supply but close. However Are you *sure* those cards are in the right slots? Reason I am asking: When I look at the HP docs they label the Pre-regulator board as A3A1. A3A1 also has the red LED. The inverter board (the one with the transistors and transformers) is A3A2. Likewise the battery charge boards are A3A3, A3A4, and the control board at the end is A3A5. The slots are labeled 1-5 with 1 being closest to the power cord and 5 being on the output end. A3A5 will only fit in slot 5, and A3A4 has the 12 volt trim pot that is accessible outside the supply by a cut-out so it has to be in slot 4. Slot 3 is not used on my unit because I don't have the battery backup circuits. However in your picture slot 2 has the LED preregulator board and slot 1 has the one with the transistors and transformers (inverter). So either your picture has the parts backwards or someone at HP should go to hell for exceptionally bad numbering. Does your supply work? C On 9/10/2021 12:43 PM, Guy Dunphy wrote: Here are some disassembly pics of a HP 5061-6615 power supply. http://everist.org/pics/hp1000_ps/5061-6615.zip 2.9M Details: HP 1000 Model 2113E SN 2340A03701 OPT 004 014 power supply Model 5061-6615SN 2340 Not the exact same PS as yours, but it might help? My problem is I haven't been able to find a manual and schematics for that apparently late model supply. Though last time I looked was years ago. The lack of a manual/schematics froze that restoration project. Can anyone suggest where I might find a copy? PDF, or I'd pay for an original paper copy. (To use, and also ensure it's scanned in high quality.) Guy At 09:30 PM 9/09/2021 -0400, you wrote: Quick question: I've been cleaning out and repairing an HP5061 supply for a 1000 computer. However I didn't take a picture of the 4 boards when I pulled them and I want to make sure they go in the right places. From the manual (page 99 of 92851-90001_Sections-IXB_Mar-1981.pdf) the slots are labeled A6-J1 through A6-J5. Does this mean that: J1 is the J5 is the control board (A3A5) J4 is a jumper board for +12 adjustments J3 is unused (battery backup boards) J2 is the inverter board (A3A2) J1 is the pre-regulator board (A3A1) Seems right but I know how bad things can go :-) Thanks! C
Re: Scanning Suggestions (Bookmarks & Colour)
> On Sep 10, 2021, at 12:21 PM, Paul Flo Williams via cctalk > wrote: > >> ... > > https://hisdeedsaredust.com/2021/09/10/colour-separations-with-graphicsmagick.html Paul, You said "At the moment, I’ve been picking the colour by choosing an image with a large area of blue, pulling it into Gimp and successively resampling down until I’ve got a tiny image on which I use the colour dropper tool.". There's a simpler way. The GIMP color dropper has a "radius" setting, which you can set to be however big a region you want it to sample. It will use the average of that region. By the way, I tried to send an off-list reply to you; that was rejected by some dumb outfit called Spamhouse SBL: Diagnostic-Code: smtp; 550-X-AAISP-blacklisted: 2001:558:fe21:29:69:252:207:42 listed in Spamhaus SBL Bizarre message because it doesn't appear in the mail routing of the rejected message, but it maps back to one of the comcast.net mail servers. Does this mean you have a mail filter that rejects everything from comcast.net customers? I remember nonsense like that back in the 1990s, but I didn't realize there were still any left that perpetrate such absurd notions. paul
FYI: NDWiki - planned downtime
Bitraf[1] is moving, and the NDwiki[2] server moves with it. The move starts Saturday September 11th 2021 at 12:00 hours local time, and is expected to be completed sometime before midnight. References: 1) https://bitraf.no/ 2) http://www.ndwiki.org/ -- Regards, Torfinn Ingolfsen
Re: HP 5061-3476: Which boards go where
Here are some disassembly pics of a HP 5061-6615 power supply. http://everist.org/pics/hp1000_ps/5061-6615.zip 2.9M Details: HP 1000 Model 2113E SN 2340A03701 OPT 004 014 power supply Model 5061-6615SN 2340 Not the exact same PS as yours, but it might help? My problem is I haven't been able to find a manual and schematics for that apparently late model supply. Though last time I looked was years ago. The lack of a manual/schematics froze that restoration project. Can anyone suggest where I might find a copy? PDF, or I'd pay for an original paper copy. (To use, and also ensure it's scanned in high quality.) Guy At 09:30 PM 9/09/2021 -0400, you wrote: >Quick question: I've been cleaning out and repairing an HP5061 supply >for a 1000 computer. However I didn't take a picture of the 4 boards >when I pulled them and I want to make sure they go in the right places. > > From the manual (page 99 of 92851-90001_Sections-IXB_Mar-1981.pdf) the >slots are labeled A6-J1 through A6-J5. Does this mean that: > >J1 is the >J5 is the control board (A3A5) >J4 is a jumper board for +12 adjustments >J3 is unused (battery backup boards) >J2 is the inverter board (A3A2) >J1 is the pre-regulator board (A3A1) > >Seems right but I know how bad things can go :-) > >Thanks! >C >
Re: Scanning Suggestions (Bookmarks & Colour)
On Fri, 3 Sep 2021 10:10:50 +0100 Antonio Carlini via cctalk wrote: > On 02/09/2021 20:51, Paul Flo Williams via cctalk wrote: > > > > I haven't finished writing this up, but my workflow tends to be to > > produce a Group4 TIFF from the colour scan by simple thresholding > > (or first dropping the other colours to white, if they are quite > > dark), and then produce all the other separations by dropping black > > out, converting your spot colour to black and then thresholding. > > This way you get two or more images: > > > > 1) PNG(s) containing pixels that are all either white or your spot > > colour, > > 2) a G4 TIFF for the black and white layer. > > As I'm in the process of scanning manuals right now, and I'd like to > preserve the colour, I'm looking forward to the write up. https://hisdeedsaredust.com/2021/09/10/colour-separations-with-graphicsmagick.html You're welcome to send me any sample scans of your RSX manuals, Antonio, because I'd like to see the results with other colours. I've been processing light blue, green and brown separations on other manuals and doing a lot of coding, generalising my toolchain at the moment and filing issues with GraphicsMagick on the way. (Incidentally, I've improved that PDF from a week ago to add bookmarks and proper page labels. Link in article; much more needing to be written.) Regards, Paul
