poobah

Use machine pins

Yah, you need an analog mux, though it probably could be retrofitted.

It's almost certainly a GBS-8220. The video quality on those varies quite a bit depending on your output device. It looks good on a quality CRT. LCDs are tougher, some look great, some not so much, depending on the scaler in the LCD controller. Essentially, we're taking an analog signal, sampling it, manipulating it, converting it back to analog in the GBS-8220, then repeating the process in the LCD. I'm not super excited about this particular design. As amiman99 noted, it is drawing far too much power from the joystick port. However, Goochman bought one and last I heard he was happy with it. Because it is a decent all in one solution, I'm working up a version with a proper power supply, a nice case and a built in mono/color switcher. Alas, it won't be cheap, at least $100, probably more. My prototype is almost complete, I post some pictures when it is done.

It should work on any ST. (though more testing is definitely needed) A small wall-wart will be required The prototype is an external box with a standard ST video cable to the ST, a power input and an S-Video output. One could easily be mounted inside an ST, which would eliminate the need for a power brick. I actually had the 1st stripboard version sitting inside a 1040 STf where the RF modulator would have been.

So, I've managed to resolve the 'dancing pixels' issue, and can output a reasonably decent S-Video picture. There does remain one issue: 50 Hz stuff. I've gotten varying results depending on the output device, ranging from fine, to black and white only or a rolling color picture. There's no easy way I can fix this, as it all depends on what your particular tv thinks about a psuedo-PAL picture, so 50 Hz is a crap shoot. So is there any interest in a run of ST S-video adapters that work great at 60Hz, and YMMV at 50Hz?

Not to start a big flame war, especially since I agree with the majority of your comments, but your understanding of exactly what java entails is pretty far off. Java and Flash are two completely different animals. Flash is pretty evil, bloated and clunky and yes, it does lower the bar to 'programming' a game substantially, however, the compromises are the complaints you raised As for java, it you are finding bad games, the issue is the programmer, not the language. java is roughly the same level as C#, Objective-C, and to a lesser extent, C++. One can easily make very high quality games in java. Perhaps you are confusing javascript with java? It is a common misunderstanding and sadly, the only thing the two have is common is the sharing the word 'java'

They did the math on the GPU. :rolling: Nice!

VirtualBox, Parallels, VMWare?

The processing required for such a CRT model would crush any current consumer PC.

Holy cow... time to sell a TT!

3 displays, one 1040 STf Left is a CRT, middle is a BenQ 24" 1920x1080 LCD fed from a slightly tweaked GBS-8200 via VGA One on the right is a Vizio 720p Television, fed by breadboarded S-video....... More soon!

Correct.

I never did understand the fuse permanently sealed in side the case deal.

Try http://gtello.pagesperso-orange.fr/stacy_e.htm I should warn you that all the plastic latches and such will be very brittle. proceed carefully.

So, I've been trying some approaches to cleaning up the sync signals... On LCD's, results do vary a bit, largely dependent on the scaling hardware in the panel. I've got a couple 4:3 panels that look pretty good. Dell 24" widescreen, is just OK. Ben-Q widescreen and Vizio 720p tv aren't too shabby If you are still rocking a CRT, it looks fantastic.

It was, a busted one at that. He was like "See that, this an NES-001... these are original, they're worth $10,000, this is why we do this"... took it to the game store and the guy told him it was worth like $10. Classic.

400mA is still quite a lot for the joystick ports. I'll have to see what the draw is on the ST 5V rail normally. Where did you find the 500mA spec for joystick ports?

Anyone have a dead SX212 modem they don't want anymore? Thanks! -Ken

Yes it comes with everything you need to get going. I used it with my Mega2 ST with no problems powering on 2nd joystick port. The power cable is a bit short which I told the author who will make it longer with the new boxes (he only had a 1040ST) If someone in the US can produce these for a lower cost that would be great - I got mine for basically $100 shipped to me. 2 amps is way too much to pull off the joystick port, Heck a 1040ST PS is only rated for 3A total on the 5v rail.

Which probably is not a good idea. The board calls for 5v, 2 amps. I'm using an old cisco brick for mine.

4.5" square or so, plus a little bit of perf board for the xor gates and a mux

It's GBS-8220 , search on ebay for "Arcade VGA" many of them are shipped from China at around $30 with free shipping. I have one of those boards and it works great with Amiga PCs. ST requires a sync combiner, because the 15KHz input needs composite sync and ST provides H+V only. If you have a ST with composite OUT then you could extract sync signal from it using an IC (I forgot the #). Yah, I've got one here on my bench. The ST sync signals are a a bit squirrely tho. Got some ideas.

... and older electronics often had more 'head room' on the components. Stuff you get today is often close to, if not already out of spec.

So, what's inside? I'm still speculating its a generic scan doubler board with some signal conditioning. The signal conditioning is the key

Never owned an Amiga, but a friend had an A1000 back in the day, I thought the case was great. It was different that other systems at the time, particularly the underneath keyboard storage.