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#1
March 16th 09, 04:32 AM
posted to rec.radio.amateur.boatanchors
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General Radio 1604-B ?
Had one follow me home from the local hamfest. It's a Comparison Bridge
with a 2" scope from the mid 50s. Neat looking box. Anyone got any info, manual or what its primary application was/is? pic posted to http://s97.photobucket.com/albums/l237/wd5jfr/ Thanks Hank wd5jfr |
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#2
March 16th 09, 04:52 AM
posted to rec.radio.amateur.boatanchors
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General Radio 1604-B ?
Henry Kolesnik wrote:
Had one follow me home from the local hamfest. It's a Comparison Bridge with a 2" scope from the mid 50s. Neat looking box. Anyone got any info, manual or what its primary application was/is? pic posted to http://s97.photobucket.com/albums/l237/wd5jfr/ Hi, Hank The 1604A bridge was featured in the Feb 1954 General Radio Experimenter. I'll try to send the pdf file to your email adr. 73, Ed Knobloch |
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#3
March 16th 09, 02:53 PM
posted to rec.radio.amateur.boatanchors
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General Radio 1604-B ?
In article ,
Henry Kolesnik wrote: Had one follow me home from the local hamfest. It's a Comparison Bridge with a 2" scope from the mid 50s. Neat looking box. Anyone got any info, manual or what its primary application was/is? pic posted to http://s97.photobucket.com/albums/l237/wd5jfr/ It's a device for comparing two unknown impedances. Very handy if you want to make up a bunch of coils that match perfectly. Not quite as handy as an adjustable bridge for determining the value of an unknown, but if you combined it with a decade capacitor box and a variable inductor, you could use it for that. IET Labs is working hard on getting a lot of GenRad manuals up, on http://www.ietlabs.com/pdf/Manuals/index.html now. They don't have a 1604 manual, but you might be able to request one. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
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