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New Activity (
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Older Activity
Today,
12:10 AM
retro-pc_user
replied to a thread
Amstrad PPC512 / 640 ISA Expansion Board Design
in
PCs and Clones
That's a beautiful adapter. If I had an Amstrad PPC640, I would get something like this for the XT-IDE card, sound card, and so on.
see more
1 replies | 9 view(s)
Yesterday,
11:35 PM
DougIngraham
replied to a thread
What did I do to my PDP-8 today.
in
DEC
From the CJL version of the handler:/ REMOTE LINE IOT DEFINITIONS. REC= 40 /DEVICE 40 FOR REMOTE RECEIVE. ...
see more
165 replies | 10376 view(s)
Yesterday,
11:29 PM
AndyG
replied to a thread
Help with fixing Commodore 2040 Dual Floppy drive
in
Commodore
Just a thought but are the contacts on the edge connector clean and free from dirt or oxidation ? Andy
see more
15 replies | 157 view(s)
Yesterday,
11:26 PM
MikeP
replied to a thread
Help with fixing Commodore 2040 Dual Floppy drive
in
Commodore
Hi Dave_M, Thanks for posting the listing. I typed the whole program and everything reported as OK :( Mike
see more
15 replies | 157 view(s)
Yesterday,
11:16 PM
bqt
replied to a thread
What did I do to my PDP-8 today.
in
DEC
Do you also use RKSF, RKRB, and so on...? Anyway. Thanks for that explanation. I tend to think of the instructions without tying them to a...
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165 replies | 10376 view(s)
Yesterday,
10:33 PM
ajacocks
replied to a thread
ALR RAM Expansion 16 bit ISA Card
in
PCs and Clones
Thanks for the note. I checked the AST RAMpage for comparison, and while it is similar, it’s not exactly the same. Particularly, it’s missing the...
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2 replies | 24 view(s)
Yesterday,
10:30 PM
luckybob
replied to a thread
IBM 5150 PC, two slim 5.25 floppies, keyboard, monitor, printer, DOS 2.1 on eBay
in
Vintage Computer Items For Sale or Trade
Well his ebay name is "fair-seller" after all. ^.^ That system is VERY clean. And to the people that poo-poo that monitor. I have one, and it...
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11 replies | 284 view(s)
Yesterday,
10:15 PM
MattisLind
replied to a thread
QIC DC600A tapes with broken drive belts
in
General Vintage Computer Discussions
Check Nisshinbo Mobilon Bands. https://us.misumi-ec.com/vona2/detail/223000860382/?KWSearch=Mobilon%20band&searchFlow=results2products I have...
see more
28 replies | 2213 view(s)
Yesterday,
10:05 PM
Trixter
replied to a thread
IBM 5150 PC, two slim 5.25 floppies, keyboard, monitor, printer, DOS 2.1 on eBay
in
Vintage Computer Items For Sale or Trade
That is much more in line with current market expectations. Thank you for being receptive to community input.
see more
11 replies | 284 view(s)
Yesterday,
09:46 PM
soon668
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
It works! I set OSCCAL to user own value of 3440. The clock selection was correct initially, i must have accidentally choose the wrong one when...
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45 replies | 741 view(s)
Yesterday,
09:27 PM
soon668
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
i think i know why the value is overwritten. When I program the PIC, I use the Sequential Run function, which first ERASE before it programme. Here...
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45 replies | 741 view(s)
Yesterday,
09:24 PM
Chuck(G)
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
I see where it says "Restore OSCCAL". Well, maybe we can make it work anyway. Change the word at 03FF to 34 40. (pulling a value out of the...
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45 replies | 741 view(s)
Yesterday,
09:19 PM
soon668
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
and here is the config available for the programmer
see more
45 replies | 741 view(s)
Yesterday,
09:14 PM
soon668
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
I have another PIC, but reading it seem to show 03ff has value of 3F as well. Here screenshot of content read of an new unprogrammed PIC.
see more
45 replies | 741 view(s)
Yesterday,
08:55 PM
Chuck(G)
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
The upper 2 bits set to 0 on the odd bytes is correct--the program memory in a PIC12 is 14 bits wide. However Your programmer over-wrote the...
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45 replies | 741 view(s)
Yesterday,
08:32 PM
kb811
replied to a thread
reproduction PDP 8e toggle switches?
in
DEC
An update. The second half of the following is mostly about "RAL Design" colours and the use of paint. See also: "freebies". RAL Classic: there...
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95 replies | 8734 view(s)
Yesterday,
08:20 PM
RootHouston
replied to a thread
Would a Gotek floppy emulator work on my IBM PS/2 Model 80 (8580-A21)?
in
Later PCs
Thanks. It looks like it's a private group, but I've asked for permission to join. Until then I cannot see anything there.
see more
2 replies | 41 view(s)
Yesterday,
08:05 PM
dabone
replied to a thread
Petsd
in
Commodore
You'll have to wait for bitfixer to release it, like I said, I'm just helping beta test.
see more
22 replies | 1246 view(s)
Yesterday,
07:51 PM
soon668
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
and the configuration value at address 400EH-400FH is D431
see more
45 replies | 741 view(s)
Yesterday,
07:41 PM
the3dfxdude
replied to a thread
Best lightweight word processor for MS-DOS 3.3?
in
Vintage Computer Software
I thought EDLIN was dropped by DOS 5 or at least certainly never was included in Windows. Did they add it back to Win10 trying to be cool? EDIT:...
see more
20 replies | 258 view(s)
Yesterday,
07:31 PM
the3dfxdude
replied to a thread
Is it possible to repair a model F keyboard?
in
PCs and Clones
Did you check the internal ground cable if it has a good connection? That would be where I'd look if the keyboard behaved like that.
see more
1 replies | 21 view(s)
Yesterday,
07:25 PM
Hugo Holden
started a thread
Bytesaver, block move program & BASIC-5
in
S-100
The 2708 UV EPROMS finally arrived in the post from Germany. I got the Bytesaver up and running with Processor Technology's BASIC/5 in PROMS. The...
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0 replies | 40 view(s)
Yesterday,
07:16 PM
soon668
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
so indeed the programmer changed something. Here I attached comparison of content of HEX file and what I read from the PIC. read from PIC: ...
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45 replies | 741 view(s)
Yesterday,
07:02 PM
soon668
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
the value is 3F, here i attached a screenshot
see more
45 replies | 741 view(s)
Yesterday,
06:42 PM
Chuck(G)
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
I take it that your programmer did not modify location 03ffh, and did program the configuration fuses as the source shows: __CONFIG ...
see more
45 replies | 741 view(s)
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