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![]() Bill M ) writes: Pete KE9OA wrote: Very true.............with those old receivers that didn't have one of the new types of product detectors, you had to run the unit with AGC off and use back the RF gain down to eliminate the distortion. When did this commonplace knowledge disappear from the radio scene? Pity...I guess thats why we have this forum. -Bill It disappeared when it became unneeded knowledge for most, ie when product detectors came along and those using old receivers for SSB were in the minority. The best source of old knowledge is when something is new, because nobody assumes everyone knows, and it's information people want. So the magazine articles covered this really well when SSB first really hit in the late forties, with complete and detailed articles, and then as SSB became more common it was still out there but reduced to a paragraph or a sentence. Since nothing has changed much, those early articles are still as useful as back then. WIth some things, say superregenerative receivers, it's like that game, "broken telephone". By the time you get to the end, articles are not repeating what was originally said, but what's been watered down in decades of rather simple articles. Of course, the original poster has said there was a problem beyond this matter, and indeed there was something in the wording that made me think it wasn't this issue. Michael VE2BVW |
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