{"id":1493,"date":"2020-04-09T10:13:00","date_gmt":"2020-04-09T00:13:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2020\/04\/09\/wb9iwts-quarantine-mighty-mite-and-n3fjzs-hiram-percy-maxim-recognition-factor\/"},"modified":"2025-07-21T11:34:25","modified_gmt":"2025-07-21T01:34:25","slug":"wb9iwts-quarantine-mighty-mite-and-n3fjzs-hiram-percy-maxim-recognition-factor","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2020\/04\/09\/wb9iwts-quarantine-mighty-mite-and-n3fjzs-hiram-percy-maxim-recognition-factor\/","title":{"rendered":"WB9IWT’s Quarantine Mighty Mite and N3FJZ’s “Hiram Percy Maxim Recognition Factor”"},"content":{"rendered":"
<\/a><\/div>\n

Leif WB9IWT has, during the emergency, been working on a Michigan Mighty Mite (See pictures above and below). FB Leif. <\/span><\/b>

<\/span><\/b> But also check out the very astute comment from Rick N3FJZ<\/a> (below) . I am, of course, all in favor of the HPMR Factor. Almost all of my rigs would score quite high. Others, I know, would seek a low score. To each his own. This is all for fun. <\/span><\/b><\/p>\n

Leif,<\/span>

Great work. If a ham from the 1920’s were to see this rig, they<\/span>
probably wouldn’t recognize the actual components right away (but<\/span>
knowing hams, they would no doubt figure it out), but the breadboard<\/span>
layout circuit flow would be immediately recognizable; e.g. the plug-in<\/span>
crystal, the coil, binding post. The transistor and variable capacitor<\/span>
may baffle them at first, but seeing there are three leads on the<\/span>
transistor would start to give them clues.<\/span>

That’s the cool part about analog discrete component radio, no matter<\/span>
how many years go by, and the appearance and size of the actual<\/span>
components change, the physics of what’s going on at the electron level<\/span>
stays the same (SDR not withstanding).<\/span>

I guess this could be a litmus test for us analog radio builders. It<\/span>
could be called the “Hiram Percy Maxim Recognition Factor” or “HPMR<\/span>
Factor” with a range of 0 to 1. After you build your rig, take a look<\/span>
at it and pretend that you could present it to Mr. Maxim and the more he<\/span>
could understand the circuits, components and circuit flow on his own,<\/span>
the closer to a factor of 1 your radio would achieve. For example, an<\/span>
SDR might only achieve a factor of .1 or even maybe 0, where as your rig<\/span>
may achieve a factor of .8, and one of your crystal receivers would<\/span>
definitely get a 1.<\/span>

Someone could even workout a check list or formula where you would add<\/span>
or subtract some fractional numeric values for each component you used;<\/span>
e.g. you would subtract some value for every IC chip, microprocessor or<\/span>
LCD display you use, and add some fractional value for each hand wound<\/span>
coil, vacuum tube\/valve or open air variable capacitor, et cetera.<\/span>

Fun to think about.<\/span>

Keep building.<\/span>

Rick – N3FJZ<\/span><\/b>

<\/span><\/b> <\/p>\n

<\/a><\/div>\n

<\/p>\n

<\/a><\/div>\n


<\/span><\/b><\/p>\n","protected":false},"excerpt":{"rendered":"

Leif WB9IWT has, during the emergency, been working on a Michigan Mighty Mite (See pictures above and below). FB Leif. But also check out the very astute comment from Rick N3FJZ (below) . I am, of course, all in favor of the HPMR Factor. Almost all of my rigs would score quite high. Others, I … Continue reading “WB9IWT’s Quarantine Mighty Mite and N3FJZ’s “Hiram Percy Maxim Recognition Factor””<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":1494,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24,100,270,31],"tags":[],"class_list":["post-1493","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-michigan-mighty-mite","category-old-radio","category-quarantine","category-radio-history"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/1493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/comments?post=1493"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/1493\/revisions"}],"predecessor-version":[{"id":1497,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/1493\/revisions\/1497"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/1494"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=1493"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=1493"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=1493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}