Mitochondrial Challenger
hack.net
Mitochondrial Challenger
@hack.net
FYI - the full MC68060s advertised by shipcycle on eBay are rebadged MC68*LC*060, rev 4. Or at least my sample was.

The top is sanded down and laser etched with the fake info.
September 20, 2025 at 11:04 PM
Yeah, small and big CPLD.
August 17, 2025 at 1:52 AM
Two LEDs that come on RED, but they do appear to have a second color..

Anyone know anything about this card?
August 16, 2025 at 11:56 PM
Weird-ass resistor networks. Never seen this package before.
August 16, 2025 at 11:54 PM
The DRAM and VRAM. I will have to see where the 'serial' video data goes, if anywhere. I would've thought there would be a DAC, or at least some high-speed stuff to get digital video off the board, but maybe not? There's nothing that looks it could xmit digital video, and also nothing analog.
August 16, 2025 at 11:53 PM
The chip I'll eventually remove:
August 16, 2025 at 11:50 PM
VRAM, DRAM, UART, small microcontroller, the TMS34020 GPU, and an ISA<->34020 bridge chip that provides (memory) windowed access into the 34020's address space.
August 16, 2025 at 11:49 PM
Picked up an odd ISA card - I wanted it for the TMS34020 graphics chip - but it's worth taking a look at. It's a component of a Siemens Sirona (?) X-ray system. ~1998 vintage.

The back has all MELF components, looks like it would be expensive to produce.

No DAC, but uC and UART. #electronics
August 16, 2025 at 11:47 PM
This is a low hour Meanwell RT-50B with a 2.2A load on the 5V line. It's really bad... I checked the board, no visual issues, no obvious cracked joints on filter caps. #logic #ee #power
August 10, 2025 at 12:05 AM
TV at work is showing DCT ringing only on the Y axis. Usually you see this 45 degrees off or just X. (aside- do other people notice stuff like this?)
April 24, 2025 at 8:23 PM
Does this work for #doscember?
December 14, 2024 at 10:06 PM
These gotta go...
December 3, 2024 at 1:33 AM