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Re: FM synth - native/direct vs. through MIDI?

In the DOS era there was not much MIDI-capable hardware, and it definitely was not meant to interface FM synths. The dos games would play game-specific music formats via game- or game engine-specific driver (AIL, MIDPACK, etc). The driver would normally access OPL hardware directly, though later …

Re: VGA mode 13 no signal on real hardware

On multiple occasions - with different cards and motherboards - I've seen "signal out of range" warning from monitor when switching between text and graphic modes. And it was always fixed by re-seating video card or changing the slot it was installed into. This issue could be related. The bad …

Re: Internal Error

From the programmer's point of view, the "String Space Corrupt" error message might indicate there is some kind of collection/database of strings, and that collection/database is damaged in some way, like maybe bits flipped during copying from floppy, etc. The app had checked the CRC/hash, or found …

Re: Paradise EGA Capacitors and Composite

Yes. I'd say that was the "rule of thumb" back then. I've just looked through a bunch of old videocards, Trident, CHIPS, etc. Every single one had a single nominal of 10uF 16v tantalums used all over the board. Only the ancient Jovian Logic RUBY 451 used smaller 4.7uF 16v for the same purpose, and …

Re: Paradise EGA Capacitors and Composite

16v are ok for 5v rails. For 12v rail having 16v capacitor is not that great, there are recommendations on derating the caps, many debatable though, as current quality of tantalums is way higher than before. But it's safer to put higher voltage rated caps on 12v rails. The size of current 25v/35v …

Re: Paradise EGA Capacitors and Composite

Those are bulk caps, their exact capacitance is not that critical for the application, just make sure you have the voltage rating above the rails they're sitting on. Most likely you won't even be able to find lower voltage caps (assuming you'll be replacing it with tantalums to maintain the original …

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