From FB group Building Transistor Radios<\/p>\n
Nick Bastian
\n(High L, low C circuit is better) depends on a lot of factors. From what I’ve read, hams try to keep the L low and the C high to give lower wire resistance and higher Q. In this case, the radio has to be very small so that limits the size of the tuning capacitor.<\/p>\n
If the Ferrite Loopstick was meant to be left partially uncovered, then a lot of turns could cover it up, I’m assuming that wouldn’t be good. The typical loopstick is wound with Litz wire, I wonder if there is Litz wire fine enough to wind enough for 2.2 mH. It may require a multilayer winding. Considering all of the above and the circuit, my thinking is that high L, low C would not be as good.<\/p>\n
And I didn’t mention that the regeneration causes Q multiplication by making up for losses in the tank circuit. That might cancel out much of the difference.<\/p>\n
I think that is why hams often build receivers with plug-in coils. They can experiment with different windings to find the optimum coil.<\/p>\n","protected":false},"excerpt":{"rendered":"
From FB group Building Transistor Radios Nick Bastian (High L, low C circuit is better) depends on a lot of factors. From what I’ve read, hams try to keep the L low and the C high to give lower wire resistance and higher Q. In this case, the radio has to be very small so <\/p>\n (Read More…)<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-12877","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/12877","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12877"}],"version-history":[{"count":1,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/12877\/revisions"}],"predecessor-version":[{"id":12878,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/12877\/revisions\/12878"}],"wp:attachment":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12877"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12877"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12877"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}