I have had these DIP to PLCC adapter kits in my stash for quite a while, today I finally gave in and built them. They are usefull if you want to use PLCC Amiga CIA chips instead of DIP CIA chips and for using an PLCC Motorola 68000 CPU instead of a more common DIP 68000.

Commodore Amiga 8520 CIA PLCC to DIP adapter

Amiga 600, 1200 and 4000 uses PLCC 8520 CIA chips, these chips can be used on Amiga 500, 2000 and Amiga 3000 (I guess on the A1000 too) with a DIP to PLCC adapter. In my experience it is actually cheaper to get a real DIP 8520 instead of using an adapter and a PLCC CIA for Amiga computers that can use them as they are a bit more expensive on the market. But if you are like me and have a stash of 100 PLCC CIA chips then you gotta do what you gotta do (obvious joke).

Motorola 68000 PLCC to DIP adapter

PLCC 68000 CPU is not that common but it is used in the Amiga 600 (and IIRC in the Atari ST). You can run one in an Amiga 500 and Amiga 2000 with a DIP to PLCC adapter. Why would you want to run a PLCC 68k CPU instead of the DIP Motorola 68000 CPU? No idea, but it looks cool.

Build tips for PLCC to DIP adapters

1. Do the pinstrip first by soldering two legs on each side only and making sure the pinstrip is straight, you can also fit the pinstrips in a socket. Then solder down all the legs.
2. Cut off the upper pins that will sit under the PLCC socket with a sharp cutting tool. Cut them off as close to the PCB as possible.
3. Then solder the PLCC socket, use flux to make sure solder does not short legs outs.

Good luck!