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The 145B is passive matrix so it doesn't have this issue... of course being passive matrix it has other issues typically instead! Recapping the screen would help the common passive matrix ghosting and shading issues.

The 160 and 145 don't have the same display. The 145 is a monochrome panel, and in my experience, my 145B (also monochrome) shows far less distinct ghosting artifacts than my 165 (also greyscale). My 165 shimmers badly when in greyscale mode, and rather less noticeably so in monochrome. I...

That does look somewhat normal to me for a passive matrix screen. The white 'box' is delineated by the ends of the hash lines in the title bar to the left and the right of the word 'trash', not by the word itself, and by the lower edge of the upper segment of the display. You likewise see the...

The tunnel vision problem doesn't seem consistent across systems - for example, I've read descriptions where in the darkened areas, the screen is actually inverted, others, that there's apparent screen burn such as you describe, but neither seems to be the case on my 180. On mine, the screen...

It didn't seem heat related, or at least not directly, since heating display panels in an oven as discussed previously in the thread appears to help mitigate the issue, but I don't really have an alternative suggestion - and even after being powered down for another 90 minutes or so, the 180...

Well, almost 3 hours of use and the tunnel vision issue was becoming quite noticeable, so I left the 180 on, but turned off the backlight. The tunnel vision issue got steadily worse, to the point that after an hour when it would normally be visibly receding after power-down, it was still getting...

The one I have is a 'Wombat' made by Big Mess o' Wires: https://www.bigmessowires.com/usb-wombat/ It allows an ADB device to be used with a USB-based system, or a USB device with an older, ADB system.

I see your point - I was thinking of it in terms that if moisture is the root cause, and heat is the catalyst that causes the issue to appear, then it is still the moisture at issue that has to be resolved, because whatever heat is present during use will be present when the laptop is in use...

Pretty much the same experience with my 180. It takes about 2 hours before the corners begin to darken. Generally, at that point I put it to sleep or power down since I am usually done with it by then anyway. One thing that strikes me however is that the tunneling continues to worsen even after...

Ah, another 145B owner! Mine is pretty close to my favourite 68k. It too arrived in almost perfect physical condition, almost like it had just come out of the original packaging. It runs well, and everything works, including the original HD. Only 4Mb RAM though, so for the time being I'm leaving...

The video was extremely helpful.... partly in serving to convince me I'm more likely to do harm than good! Pretty sure I can get the display apart safely enough, but that didn't look like a beginner project! That said however, it's not time critical so it can wait until I'm ready to give it a...

I seem to be collecting 100-series PowerBooks at present! I just acquired a 165 which was sold as dead, and I wanted a few spares so I bought it. When it was delivered, I was surprised to find that with my new power adapter it booted without a problem. However, the screen is definitely not...

I'm no expert, but I doubt the issue with the screen coming on with horizontal lines and then staying like that is actually a problem with the screen itself. It seems more likely to me to be that the powerbook is not initializing. My 180 did the same thing. Powering it up caused a startup...

DOS machines did indeed evolve into Windows systems, and there was a reasonably articulate flow to that, which was not least the result on building on the earlier platform, rather than the constraints of it. There's no doubt the IIGS could have been a new platform that broke away from the prior...

Oh, yes, that's the analogy I was looking for!! I certainly recognize the nostalgia factor in the line of Apple II systems, and even the enthusiasm for re-litigating the whole 'Jobs used the Apple II to fund the Mac' debate too. But the reality is that for all Woz's undoubted genius, there was...

There is really no arguing with this point, because the Apple II was a cash-cow for the company for years. It sold extremely well because there was so much software available for it. However, the marketplace for systems was evolving rapidly by the mid-80s, and the Apple II was not, nor could it...

Oh, I really hope not! I think the point you're making regarding the potential for performance in the IIGS is an interesting one, but I don't think it was an opportunity missed. To my mind, the real issue here is that the Apple II line was destined to come to an end anyway, if for no reason...

At one point there were businesses that offered toner refurbishing services, so that may be an option to look into.

I am almost certainly going to find a lot of use for at least two of these. What a truly great development!!

With the exception of the PB 100 (which I don't know about) and the 190 (which wasn't really a 100-series model anyway), I think the 100s all run on 7.5v. And even though these old Apple power adapters aren't all that rare, new replacements can be had on Amazon (and elsewhere) for under $10. I...