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Today, 08:34 PM

Chuck(G) replied to a thread Disks in Vintage Computer Items Wanted

Wash the cookie with a mild detergent and discard the cover (it's contaminated and you're not likely to be able to clean it). Place in a fresh...

11 replies | 336 view(s)

Today, 08:25 PM

6885P5H replied to a thread Disks in Vintage Computer Items Wanted

They are 3 1/2s and 5 1/4s. I live in an extremely humid place but for many years they were fine. Then they started to grow mold I suspect sometime...

11 replies | 336 view(s)

Today, 05:50 PM

ChickenMan replied to a thread Turbo Pascal 4 compatible cross-compiler in CP/M and MP/M

Sorry my mistake, the 00FC I changed was near the end on the program at AF0F offset, just above where the opening text is. EP.COM on the...

24 replies | 480 view(s)

Today, 05:03 PM

RadRacer203 replied to a thread Fujitsu Micro 16-s system available to you in PCs and Clones

I think I'm going to be getting it, if not then I believe my friend is second in line. I'm just really curious how it's set up. Never heard of it...

5 replies | 86 view(s)

Today, 04:39 PM

jafir started a thread BP Microsystems EP-1 - single board Z80 computer? in Other

So I wanted to program some Motorola MCM68766C EPROMs and I’ve got a xeltek 280U that lists those as compatible, but it fails after the first bit no...

0 replies | 25 view(s)

Today, 04:15 PM

nzxtinertia started a thread Pentium 2, 440LX, and AGP compatibility in Pentium (First generation)

Hello all. Currently building a "vintage" windows 98 era PC to play all of those old games I played growing up. Currently I have a Pentium 2,...

0 replies | 6 view(s)

Today, 03:57 PM

bladamson replied to a thread Here is a dump of the character ROM from the TRS-80 DT-1... in Tandy/Radio Shack

I think gp2000 is right and it's probably corrupt. Tried dumping it again and got the same thing. I'm gonna burn what I read to another ROM and...

4 replies | 80 view(s)

Today, 03:16 PM

rjarratt started a thread VAXmate output to VGA Monitor in DEC

Given that it seems unlikely that I will ever be able to replace the flyback transformer in the monitor for my VAXmate, my next option is to try to...

0 replies | 24 view(s)

Today, 03:15 PM

Robbbert replied to a thread Here is a dump of the character ROM from the TRS-80 DT-1... in Tandy/Radio Shack

There's already dumps at bitsavers, but let's see if you got a different version.

4 replies | 80 view(s)

Today, 02:58 PM

bladamson replied to a thread Here is a dump of the character ROM from the TRS-80 DT-1... in Tandy/Radio Shack

Hmmm, interesting. The characters appear valid on my screen, so I either dumped it wrong (which seem unlikely, but I guess anything is possible;...

4 replies | 80 view(s)

Today, 02:39 PM

rvdbijl replied to a thread Corona Data Systems PPC-11 in PCs and Clones

Yeah, it's a bit of a gamble. What I do know is that the PC-400 output seems to work fine with a standard IBM MDA monitor. I figured if the screen...

27 replies | 953 view(s)

Today, 02:35 PM

clh333 replied to a thread Model III Power Supply Problem in Tandy/Radio Shack

The 4116 has seven address lines, A0 - A6. In order to specify all 16,384 memory addresses it would have to receive the requisite address in two...

5 replies | 98 view(s)

Today, 02:28 PM

normanator replied to a thread 5150 Shorted cap on the 12v Rail. in PCs and Clones

Makes sense. And I can see in this thread the general consensus is replace the bad and leave the others alone. Will go with the group recommendation....

28 replies | 1924 view(s)

Today, 01:19 PM

rvdbijl replied to a thread Interesting memory board... in PCs and Clones

Thanks guys. Definitely good things to look at.. Guess experimenting it is! :) And yeah, I figured there was no parity enabled on this board...

3 replies | 105 view(s)

Today, 01:05 PM

Dwight Elvey replied to a thread Discovered I have some "Vintage" LEDs in General Off Topic

I'm always looking for one of the LEDs in the gold body. I have one dim one on my SIM4-01 setup. Dwight

5 replies | 88 view(s)

Today, 12:47 PM

tipc replied to a thread fs: ROSEWILL 1600 wattp Hercules power supply new in Off Topic Marketplace

It's several months old and I have the invoice. It's probably more then a year on the warranty but I can't swear to it. The decision is up to the...

6 replies | 129 view(s)

Today, 12:46 PM

krebizfan replied to a thread Turbo Pascal 4 compatible cross-compiler in CP/M and MP/M

https://web.archive.org/web/20070209131650/http://www.uic.nnov.ru/~pyva/dev_k.html explains the memory banking. Looks very complicated and different...

24 replies | 480 view(s)

Today, 12:30 PM

dreNorteR replied to a thread Turbo Pascal 4 compatible cross-compiler in CP/M and MP/M

Looks to me more like an accident that this outputs something, the code you patched is almost certainly for setting up space on the stack instead of...

24 replies | 480 view(s)

Today, 12:22 PM

Roland Huisman replied to a thread Got some PDP8 papertapes and books today in DEC

I made a little program for the PDP8 to sent the PC04 data to the second serial port. I used Tera term to read the ASCII files. These are...

1 replies | 77 view(s)

Today, 12:13 PM

Unknown_K replied to a thread fs: ROSEWILL 1600 wattp Hercules power supply new in Off Topic Marketplace

Well newegg is shipped and you would have a warranty (proof you purchased it), yours is $100 + shipping and no warranty.

6 replies | 129 view(s)

Today, 11:54 AM

cruff replied to a thread IIGS Astec AA13581 repaired 2 months ago went bust. Need help in Early Apple (I, ][, ///, etc.)

Bad solder joints can sometimes be hard to find. If looking at that feedback transformer winding doesn't pan out, might be worth it to go back and...

12 replies | 131 view(s)

Today, 11:52 AM

jimbox114 started a thread WTB Commodore 64 power supply and/or floppy drive in Vintage Computer Items Wanted

Looking to buy a C64 power supply and/or floppy drive. I have a C64 plus with the square power supply and one of the white C64 systems without a...

0 replies | 16 view(s)

Today, 11:51 AM

Twospruces replied to a thread π for the Altair 8080 in CP/M and MP/M

I did use CLS:RUN... Pi calculation times for TRS-80 Model 100: 100: 3.25391 300: 27.09375 1000: 291.57813 3000: 2563.17188 Running in...

18 replies | 261 view(s)

Today, 11:40 AM

vol.litwr replied to a thread π for the Altair 8080 in CP/M and MP/M

Thank you very much. The number for 3000 digits is very important. Did use CLR before RUN? The Tandy 100 scrolling is fantastically slow. You...

18 replies | 261 view(s)

Today, 11:38 AM

vol.litwr replied to a thread π for the Altair 8080 in CP/M and MP/M

It agrees. The lowest bit of L becomes CY after SRA HL. The buggy code uses value of CY before the shift.

18 replies | 261 view(s)

Today, 11:33 AM

tipc replied to a thread fs: ROSEWILL 1600 wattp Hercules power supply new in Off Topic Marketplace

And if I may point out these things used to come supplied in a metal box and sport japanese caps. Neither is the case in recent times. That 399$ tag...

6 replies | 129 view(s)