<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; "></div><div style="font-weight: normal; font-size: medium; "><br></div><div style="font-weight: normal; font-size: medium; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "> In the post with this track layout, Don reported:</div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div><div style="font-weight: normal; font-size: medium; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><br></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div><div style="font-weight: normal; font-size: medium; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; ">"Following up with a little more info, attached is a pic of the head assembly, a pic of a "modern" RCA octaplex head, and the track format specs for the machine.<br><br>You can see that the RCA head very closely resembles a quad video head, except that it has 8 transducers on the drum. Additional studying of the manual indicates that the female guide on the early Ampex did not have any vacuum. Instead, the tape path appears to have placed the guide slightly outside of the normal plane of the tape path, thus causing the tape to travel against the guide.<br><br>Don"</div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div><div style="font-weight: normal; font-size: medium; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><br></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div><div style="font-weight: normal; font-size: medium; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><span class="Apple-style-span" style="font-size: 14px; "><b><div style="font-weight: normal; font-size: medium; display: inline !important; "><br></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div></b></span></div><div apple-content-edited="true"> <div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; font-size: 14px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 12px; "></span></font></div><div><span class="Apple-style-span" style="font-size: 12px; ">Secretary</span></div><div><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 12px; ">Skype: <span class="Apple-tab-span" style="white-space: pre; "> </span>TedLangdell</span></font></div><div><font class="Apple-style-span" size="3"><span class="Apple-style-span" style="font-size: 12px; ">e-mail:<span class="Apple-tab-span" style="white-space: pre; "> </span><a href="mailto:ted@quadvideotapegroup.com">ted@quadvideotapegroup.com</a></span></font></div></div></div></div> </div><br></body></html>