Recent content by Mu0n

I added an about screen to my FireJam project https://tinkerdifferent.com/threads/digesting-midi-in-with-c-on-68k-macs-video.5134/post-45390

The GUI elements are going along well, I zeroed in on using a standard WindowPtr and just populating it with GetNewControl one by one, it felt easier than doing it as a Modal dialog. This is the About screen, collab with Japhy Riddle who provided the graphic of the jar in flames.

posted a new shorts video above

I added my computation of values needed for the programming of the Sound Driver in a TD resource. https://tinkerdifferent.com/resources/sound-driver-reference-values-for-musical-notes.172/

The Sound Driver predates the Sound Manager. Sound Driver: original ROM routines from the Mac 128 to the Mac SE or so, still present in System 6.0.8 and early versions of System 7 for compatibility reasons. Sound Manager: started appearing in System 6.0.x and promised to manage snd resources...

*UPDATE for my project on March 8th: I started a thread about it: https://tinkerdifferent.com/threads/digesting-midi-in-with-c-on-68k-macs-video.5134/

[The full video I'm working on will be pasted here when it's ready] If you feel like this thread looks like a previous one I made, then you're right. I made a separate post for MIDI out, but this is about MIDI in. Quick difference primer: MIDI out: the mac produces MIDI out commands through...

How do you propose to check for distortion? Send a pure sustained sine wave through the Sound Driver's 4-tone synth and check the output at each transitor on a scope, and look for sinus impurities?

I just stumbled upon this resource: found here on TD: https://tinkerdifferent.com/resources/mac-cable-check-manual.148/ that's gonna be my next attempt.

ok, those are good avenues to test. -12V seems like the low hanging fruit, I'll check my external floppy drive port, I think? How do I test these transistors? The sound chip is UE10, correct? This is what I have that I think is the most relevant schematic page for the SE/30

This SE/30 has been logic board recapped around 2019, it was my 3rd or 4th ever soldering job and I did a passable job of it with tantalum caps. Its analog board has yet to be done as well as the power supply. It's been a stable workhorse and I've even left it running for days uninterrupted for...

TODAY’S THE DAY. Return to Dark Castle launches at 10:00 AM PT on Steam and the Mac App Store. ⚠️Day-one momentum matters!!!! • Grab the game (25% off launch discount) • Leave a review (critical for visibility) Steam: https://store.steampowered.com/app/4054940/Return_to_Dark_Castle/ Mac...

I'm glad you figured it out! The next step I took was to use a portrait monitor video screen, gives real good screen estate for coding in Symantec C++ 6.0.

I was exactly where you are a few days ago: check this post, and its linked collection. the video ROM is in the same folder as the machine's folder: https://tinkerdifferent.com/threads/roms-for-snow.5089/