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Hi, Rebuilt kernel with CONFIG_MTD_PCMCIA_ANONYMOUS, and loaded pcmciamtd specifying card_type=1 and card_size=1 (MB) and the problematic card appears as a MTD device, however the data read out is scrambled ( every other byte is 0xFF ) looks like I'm only getting one bank or something. While...

Thanks, that is very helpful. I'll give it a try and update this thread on the results. -- Bob

Or brand new, fresh from the factory, openSUSE Tumbleweed. I am running that on several truly ancient laptops, and desktops. Works with Adapted 29xx controllers, old USB chipsets. The only thing I've found that is a problem is Transmeta Carusoe processors, some of the GUI components use...

Hi, I have a "computer" - its actually a digital carillon system implemented as an embedded system - that uses Y2K era PCMCIA linear flash ( memory mapped ) cards to store music and system backups. These are various models of 1MB ( 1 x8 bit ) linear flash cards. They have various part...

This is a significant issue. More recent models ( any with an RTC or non-volatile settings ) have the added issue of a non-removable battery often welded to the flex circuitry. Having taken a couple apart, the same issue we deal with in computers are just replicated in extreme miniature. I...

TI-95, it is ( vaguely ) turing complete, can manipulate and print text, has ROM modules, and read / write mag strip storage for data and code, so its a computer. Its clock is ~460Khz with an idle mode that divides that by 4, which form its state cycle clock. However in the TI-59 an...

I have pictures of it somewhere they are hilarious, but one batch I did an autopsy on had diodes to rectify the AC, so typical full wave bridge circuit. Each of the 4 legs of the bridge had two locations for diodes in parallel. So you could use the same part in the pick-N-place and install...

Honestly, I am rarely replacing LED bulbs any more. The ones that survive just keep on surviving. Flicker from some CFL and from LED in my peripheral vision is super annoying for me at least. For a couple panel LEDs where the drivers are a thin PCB strip in the frame, they are easily...

My non-responsive answer is "Don't hurt that thing!" The illegible tag upper left will tell you what is it. IMO, get a crappy mass production oscilloscope and leave the WWII relic for someone else. LOL. Also radar CRTs are really a different animal, not only from a deflection standpoint...

Just an aside on some of the missing components: the WD10C came in various incarnations. The WD10C23 reduced the number of needed support parts down to 3, from 11 to 15 required by the prior versions. Several of these versions were being simultaneously produced by WD, but the WD10C23 could...

Everyone has a different idea of what "bright spot" means, and mucking about "fixing" things which are not actually broken is also to be avoided - that is all I was suggesting. The other option is see if lowering the brightness knob before power off eliminates the spot. If it does, boom...

I mean you can do anything, LOL, but is it necessary? I have had / repaired a number of O1's over the decades, your description sounds "normal" to me. A video of the issue ( use fixed exposure in normal room lighting ) may help those with O1 experience tell if this is "normal" or not. I...

( Dang, beat me to it! )

See srec_cat from https://srecord.sourceforge.net/ it can separate and combine the binary data in a variety of ways. There are many ways to interleave multiple ROMs. So likely something like: # Split flat ROM into low and high srec_cat -o LO.bin -binary FLAT.bin -binary -split 2 0 srec_cat...

It won't ... LOL!

I have a growing pile of IBM wheelwriters I'm eventually going to get to messing with. They have 2 or 3 slots for interfaces. The interface cards are next to impossible to obtain, however there have been a couple people who have decoded the interface and made arduino projects to use them as...

Oh, so you need help cracking the licensing on a piece of old software. If you can find out what license key technology it uses - these things were usually a 3rd party products - there may be blanket cracking tools you could try. There are also software engineering folks that will do this...

When you say you have the program, do you mean the source code? If its from the '286 era, the Intel C compiler would be their Intel iC 86/286/... 4.x compiler. I used version 4.x when it was "new" in ~1991. So 4.0 was late 1980s. You can try with any version. The date on the source code...

That has a little bit of everything! Hopefully the ROM will give you some clues. The somewhat baffling thing is that the wire wrap seems entirely additive. I don't see any cut traces indicating rework. It almost like the board is 2 layers of a multi layer board, and the bodge is the...

Just spending your way out of this is good advice. But if you like coding... you can just ignore the system ROM entirely and implement your solution as an option ROM. This can be a physically separate ROM you shove into any ISA card with an option ROM socket. This has the advantage of...