<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class=""><br class=""></div><div class="">Dear all</div><div class=""><br class=""></div><div class="">At a hamfest on Sunday, I acquired the following useful device (hopefully, for a frequency transverter for a cheap SDR dongle):</div><div class=""><br class=""></div><div class=""><img apple-inline="yes" id="0853280A-6B8E-4E39-96C0-967292FC0F67" src="cid:11C6EFDB-2E0B-4B6C-9A35-932461E93F2F@home" class=""><img apple-inline="yes" id="DAD206F4-BF95-42EB-885D-BAB25C9CE464" src="cid:7583CD95-1522-47A2-8AB0-9A43E06FD0F1@home" class=""></div><div class=""><br class=""></div><div class="">The problem is, naturally, that I can’t find any data for it (it’s a Vectron 275-9509). As you can see, apart from the RF output and four mounting posts, there are three connection points. One is clearly soldered to the case. I assume that the other two are (a) power (what voltage? 5V, perhaps?) and (b) buffered output for a frequency meter? Connection for a filter capacitor? I dunno.</div><div class=""><br class=""></div><div class="">If anyone more knowledgeable than I can provide helpful information, or even an educated guess, I would be most grapefruit. Otherwise, I may be reduced to trying to contact Vectron.</div><div class=""><br class=""></div><div class="">Thanks,</div><div class=""><br class=""></div><div class="">Phil M1GWZ</div><div class=""><br class=""></div></body></html>