{"id":4146,"date":"2012-11-11T12:12:00","date_gmt":"2012-11-11T01:12:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2012\/11\/11\/solid-state-conversion-for-a-heath-sg-6-signal-generator\/"},"modified":"2025-07-21T16:39:01","modified_gmt":"2025-07-21T06:39:01","slug":"solid-state-conversion-for-a-heath-sg-6-signal-generator","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2012\/11\/11\/solid-state-conversion-for-a-heath-sg-6-signal-generator\/","title":{"rendered":"Solid State Conversion for a Heath SG-6 Signal Generator?"},"content":{"rendered":"
<\/a><\/div>\n

I’ve recently become acutely aware of the shortcomings of my signal generator. <\/b>
It is a Heathkit SG-6. It is really<\/i> old. It has a selenium rectifier in it. It has one of those old mic connectors on it for the output. The output is very low. But I like the cabinet and there is a nice switchable coil\/variable capacitor LC circuit in there (see above). <\/b>

<\/b> In 2008 in Hyderabad, India Farhan went to McDonalds with his kids and went home with some straws. Soon the straws are chopped up and turned into coil forms for a signal source: http:\/\/www.phonestack.com\/farhan\/siggen.html<\/a><\/b><\/p>\n

So here is my idea: de-tube the SG-6. Turn the selenium over to the HAZMAT authorities. Save the coils and the cap and most of what George Dobbs would call “the socketry.” Use an MPF-102 for the oscillator, then make use of the buffer and feedback amp from Farhan’s soda straw circuit. <\/b>

<\/b> What do you guys think? <\/b><\/p>\n

Our book: “SolderSmoke — Global Adventures in Wireless Electronics” http:\/\/soldersmoke.com\/book.htm<\/a> Our coffee mugs, T-Shirts, bumper stickers: http:\/\/www.cafepress.com\/SolderSmoke<\/a> Our Book Store: http:\/\/astore.amazon.com\/contracross-20<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

I’ve recently become acutely aware of the shortcomings of my signal generator. It is a Heathkit SG-6. It is really old. It has a selenium rectifier in it. It has one of those old mic connectors on it for the output. The output is very low. But I like the cabinet and there is a … Continue reading “Solid State Conversion for a Heath SG-6 Signal Generator?”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":4147,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[146,66,149,71],"tags":[],"class_list":["post-4146","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dobbs-george","category-farhan","category-heathkits","category-test-gear"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4146","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=4146"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4146\/revisions"}],"predecessor-version":[{"id":4148,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/4146\/revisions\/4148"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media\/4147"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=4146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=4146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=4146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}