I think most of them have the coating, even as far back as the 128k. My 128k has it, I just assumed they all did. Here's a photo of the guts of a 128k, with the coating:
| Source Forum | 68kMLA |
|---|---|
| Category | Troubleshooting |
| Post Date | Mon, 22 Feb 2010 - 11:23 |
| Original URL | https://68kmla.org/bb/threads/de-yellowing-a-plus-need-advice.19958/ |