The Ware for November 2023 is shown below.

Thanks to Zack Weinberg for mailing me this device to take apart and share!

The Ware for October 2023 is a Seiko DS-250 keyboard synthesizer.

Nobody guessed the exact make and model of the keyboard, but it was really entertaining to see the comment thread puzzle through the design. The dual 8049’s caught my attention too, as well as the lack of obvious DACs. I have some partial photos of the associated I/O board, and it also lacks an obvious DAC — mostly just generic mixer/amp/analog switch components on there, so I’d agree with the idea that the DAC could be integrated into one of the big Toshiba chips (or perhaps they are doing something with PWM).

I’ll give the prize to Cary Roberts for being the first to guess the general class of ware (congrats and email me for your prize!). Lots of attention to detail to what I had accidentally left in the background after the crop, I didn’t even notice the rollover diodes in the background until someone pointed it out!

Thanks again to JeffreyO for contributing these photos!

The Ware for October 2023 is shown below.

Thanks to JeffreyO for contributing this ware!

The Ware from September 2023 is a Honeywell HPMA115S0-XXX PM2.5 sensor. Although Ben guessed the general category of the ware first, David was the first to give the exact model. Usually I award the prize to the first person to give an exact, correct model number and fall back to category-of-ware only if no correct model number was named. So, congrats to David for nailing the exact make and model of the ware. email me for your prize!

The Ware for September 2023 is shown below.

Thanks to FETguy for contributing this ware!