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Atari 8-bit sounds on the radio. In 2021 Very nice. Hearing a ton of advertisement, I assume it's a pretty big radiostation?

What does ?FRE(0) say in BASIC? If it takes 12kB of your RAM, that's quite a lot. I assume 8kB mode F/graphics 8, some font data and the actual handler?

Yeah, in Dutch we call it a "bloempotkapsel". A flowerpot haircut.

I believe it's called a Russian haircut in Middle-Europe (which we used to call Eastern Europe).

Yeah, not many people get a dedicated easter egg in a new hardware device And it's hilarious that a lot of people (including me) thought this was his own portrait

I assume you can run the original game on an Amiga emulator? Perhaps you can mute certain channels to make it easier to determine the chords, bass, melody, etc... I like the HiScore tune more Seriously though, it sounds better IMHO. Edit: A much better recording of Battle Squadron Amiga OST: The current song in question starts at 11:21. The first few seconds remind me of The Prodigy. Edit 2: https://www.youtube.com/watch?v=svJvT6ruolA The short similarity is at 0:31.

Is it known how many with a full case are known to exist? I know of somebody that has a complete version, and wants €5000,= for it Have also seen one without the lid.

I really like how you utilized the pulse widths. Never an ear crinching duty cycle. It seems like you do the opposite of a lot SID composers. They start at 50/50 duty cycle, and then modulate to 20/80 or worse. That's when my misophonia kicks in You seem to modulate in the other direction, i.e. releasing the tension instead of increasing it. I like that

Well, I liked it for you Yes, for sure. They used it mostly for snappier and more realistic drums. Good to see how Vinscool used it for melodic instruments!

Nice rhyme

If you can detect xxl's "wrongness" and do something like a guru meditation screen, couldn't you just do the right thing instead? Just asking.

I had the same issue years ago. I moved the printer to a table that is not hollow Lack tables work like a resonance box.

That's very good advise. In the past, when I started a new project and needed a certain chip, I always ordered two or three of them from different ebay/aliexpress vendors. I also did that because one of them might not arrive. Or if it's defective, you have to wait another 2-4 weeks, etc... But in the end, I have several ICs in two- or threefold, all working But it's good practice at first. Really sorry to hear that you got ripped for a batch of 40 pieces 😮

The best conversions in this thread didn't need that much iterations. 25M-50M should be enough. And if it doesn't look good at 50M, it won't look much better at 500M. Or 2.5B. But if it does look good, you might resolve some errors in the next 50M-100M evaluations. It's all about source material, optional preprocessing, and tweaking the rastaconv parameters. Perhaps we should start a how-to thread or something, a tutorial thead

That's a Taiwan made one from April 1984, if I understand the stamp correctly. Probably fully socketed except for the delay line, and the power supply is OK. Does not look too yellowed to me. So, do we agree not to bid against the topic starter?

It had long wave, short wave, and AM/FM. But I just read some wikipedia info on the matter, and SSB seems to be a different modulation technique. Not sure if our receiver had that. Perhaps that was why we didn't get it to receive weather images, and not my mediocre soldering skills

I remember this was reprinted in the Dutch "Atari Magazine". It was one of the first DIY projects I tried to build, and I failed misserably 😕 Lets say my soldering skills were not developed yet/ I used a so-called "world" radio receiver. As a family, we used to take that one on holidays, and listen to Dutch radio, to the Tour of France, each day. Even when in France

I think you need at least 16x the OSC clock, which would be around 57MHz. But possibly the sampling rate is still to low. You'll probably need around 114MHz (Nyquist). Not sure if there are AVRs/PICs that run that fast (120MHz). Basically, you need enough cycles to detect 16 different phases/delays. A lot of MCUs I have encountered in the past have a trigger/timer unit. You set the timer to 0. Trigger it by OSC going down (start of color clock), timer starts counting (120MHz ticks), stop it when COLOR goes high. The resulting timer value is related to the phase. I hope it is obvious by now that with 32 ticks in one OSC cycle it might still be difficult to detect all 16 states (black/colorburst, and 15 colors). You have to tweak the delay pot very carefully. An ever higher sampling rate would be better. Isn't there a simple IC which can feed a clock, and another signal, and determines the phase shift, and present that as a byte on 8 of its pins or something? Edit: Perhaps that's why the Beeb version uses an extra CPLD (which is not needed for the Amiga), to determine the color?

There's no cable involved between the video out circuit and the LCD TV. The whole video circuitry is skipped, and led directly (or through a buffer) to the Pi Zero. I also think the adapter board could be made a lot cheaper. But, this is not a project I plan working on. Just giving my opinion and possible solutions as to how to capture the color data. The timer stuff should still work, but done differently. Start timer trigger by falling edge of OSC, end timer at rising edge of COL, or something like that. My cable was €10,= incl. shipping. You are right, that's not exactly very expensive. I got my Sophia2 through a group buy. Hopefully I can find the motivation to install it this week. Really looking forward to see your crisp image

Apparently, it was me who misunderstood it for years Thanks for the explanation.

It's the Mac version of atari800 with its own GUI. Pokey emulation is similar to atari800 on Linux. Or Windows. Or an Atari Falcon

That were maximum values and Vdel at 5.0V. Previous page lists the maximum values when Vdel equals 7.0V. Vdel is between 3.0V and 8.0V. I suppose the actual values are a lot lower, and depend on the OSC input, and fit in one clock cycle? gtia.pdf

I figured you could probably break the heuristics by doing unexpected jumps Like, tune 1: 0,1,2,3, jump to 0 tune 2: 4,5,6,7, jump to 0 Tune 2 is tune 1 with a different intro What would happen? 🕑

Sure? This is from the GTIA datasheet: It starts high, and goes low depending on the the color. Next clock, it starts high again. Earlier in the datasheet, it lists the number of nanoseconds it stays high (approximately) for each color. This looks like PWM with a variable duty cycle to me. Am I missing something?

Trivial, but something I never thought about before