02-17-2018, 11:37 PM
jr,
you still working on the F-1442 radio? here's a link to the aligning steps. altho, you pretty much need a modulated signal generator. readily available on ebay. here's one now, current bid $18 +S&H https://www.ebay.com/itm/Vintage-Heathki...2688421426
aligning steps: http://www.nostalgiaair.org/pagesbymodel...014000.pdf
the site http://www.nostalgiaair.org has all Rider manuals. click on resources, pick your brand then your model.
the third "speaker" connection isn't grounded as terry said. by a long shot. it should read 195V DC more or less. it's used to test the high voltage circuit without having to open the radio. the original speaker used a coaxial cord. the mesh outer shield was the connection to ground. the 6V outlet powered the coil in an original speaker. modern speakers use a permanent magnet in place of a coil.
you still working on the F-1442 radio? here's a link to the aligning steps. altho, you pretty much need a modulated signal generator. readily available on ebay. here's one now, current bid $18 +S&H https://www.ebay.com/itm/Vintage-Heathki...2688421426
aligning steps: http://www.nostalgiaair.org/pagesbymodel...014000.pdf
the site http://www.nostalgiaair.org has all Rider manuals. click on resources, pick your brand then your model.
the third "speaker" connection isn't grounded as terry said. by a long shot. it should read 195V DC more or less. it's used to test the high voltage circuit without having to open the radio. the original speaker used a coaxial cord. the mesh outer shield was the connection to ground. the 6V outlet powered the coil in an original speaker. modern speakers use a permanent magnet in place of a coil.
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