hkz<p>FYI, the fine people at <a href="https://social.chinwag.org/tags/archiveorg" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>archiveorg</span></a> have a nice collection of Apple Orchard magazine scans.</p><p>Numbers V4N3, V4N5 and V4N7 have a series made of 3 articles on direct programming of the Disk ][ interface, which I'll peruse to play around with my clone for the TK2000.</p><p><a href="https://archive.org/details/Apple-Orchard-v4n3-1983-Apr" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">archive.org/details/Apple-Orch</span><span class="invisible">ard-v4n3-1983-Apr</span></a></p><p><a href="https://archive.org/details/Apple-Orchard-v4n5-1983-Aug" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">archive.org/details/Apple-Orch</span><span class="invisible">ard-v4n5-1983-Aug</span></a></p><p><a href="https://archive.org/details/Apple-Orchard-v4n7-1983-Oct" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">archive.org/details/Apple-Orch</span><span class="invisible">ard-v4n7-1983-Oct</span></a></p>