This is a clone of memory expansion card for Laser 128E, EX and EX/2 models, 702175 Rev.C – made by Renee Harke. It’s not compatible with the FIRST revision of 128 but is with the later, 128E. I have the -E revision (later motherboard design with the RAM-expansion port).
It provides up to 1MB of “Slinky” RAM for the Laser 128 aka you can use it as RAM-disk etc.
See more details a:
Renee sells this either as a kit with all parts included or fully soldered ready-to-be-installed.
I bought this as a kit with all parts included because soldering is fun!
After soldering (took few evenings as i didn’t have the time to put on this project in one-go) i used the quite handy tool sold in ebay (few euro’s) that bends the IC-legs (it has two different sizes) to correct angle – so they are easier to install to the sockets.
I had removed the metal shield already as it’s pain to install back .. so installing the card was pretty easy and straightforward. Renee even included the 3 little screws needed for installation – that’s nice detail and good thinking.
Installing the case back together is slightly more frustating compared to //c – even it’s very similar design. I’m really not a fan of the plastics vTech used…
Also need to configure the Slot 5 as “INTERNAL” for the RAM.
The internal RAM test can be found from the monitor (CALL-151) and then typing C50AG … i was happy my soldering was successfull…. it worked!
..and it was seen by the ProDOS as correct size.
FinApple 2020 (c)
Apple II Forever.