PowerBook 150 came in today but the Logic board seems dead. No Sign Of Life ... even after it's been plugged in all afternoon. There was a gnarly corrosion on one of the smt resistors. I don't see much else out of place. There are no electrolytics on this board.
The "stackable" memory like the Duo? Yeah, as I recall it has the bottom one with a tall riser and a second stacked on top. I'll refresh my memory when I'm back at the office tomorrow.
Not sure if you tried this already, but always worth a shot to try and power it up with no battery in it. I bought a "dead" PB 170 for cheap that turned out to work great once the battery was out.
No bracket, just a standoff that the lower case screw passes through. The riser looks Apple - "JEDI MEMORY B.D". The cards are Kingston - KTA-D230/14 (Kingston, Duo 230 14 MB?).
I went to a ham fair swap meet today and couldn't resist grabbing a $10 PowerBook 180 with extra batteries (PowerPlate), all install disks, car charger and assorted software (CPU and RAM Doubler, Connectix PB Tools). I'm leaving the $75 Laser 128 where it is, though.
Picked up a PowerBook Duo 280c from craigslist. I've been needling the seller for a few months and he finally accepted my $25 offer. He threw in a Duo floppy adapter in box, USB Pro keyboard, 1.44 MB floppy drive and the keypad for an adjustable ADB keyboard. The Duo looks and works great