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 My First Radio Forum

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Shawneefolks
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Join date : 2017-10-05

PostSubject: My First Radio Forum   October 5th 2017, 2:26 am

Hello, Just call me Shawneefolks! I picked up a Brunswick 5KR with matching Type A Speaker at an auction just last week.
Dusted off the case, plugged in the cord, let it warm up, and to my surprise the attached speaker began to hum and sputter.
I retired 2 years ago from the Marion, Illinois Veteran's Hospital.
This is my first radio project and my background is not in electronics.
The antenna wires attached to the box were cracked and bare in sections. What I call an impedance transformer was also semi attached.
I saved this part but had to cut the wires about a foot from the radio box.
My question is: How do I configure the new antenna wire leads to include the old impedance transformer, or do you all have a better suggestion as to how to pick up my local AM stations.
Thank You
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19&41
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Join date : 2014-08-19

PostSubject: Re: My First Radio Forum   October 16th 2017, 12:35 pm

This unit is a bit older than the ones I collect.  I did some research on it and found it is actually a Radiola 18, RCA having made many of Brunswick's early offerings.  Without pictures it is difficult to tell exactly what the component is that is in question.  From the schematic diagram, which only shows the in cabinet wiring, the antenna input appears to be fed to the radio's circuitry through a variable resistor.

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"Any sufficiently advanced technology is indistinguishable from magic."
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19&41
Senior Member 75+ Posts
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Join date : 2014-08-19

PostSubject: Re: My First Radio Forum   October 16th 2017, 12:44 pm

Also, an individual hard copy of a schematic diagram for a radio can be costly.  When I started out I invested in one of these DVD's and I can print diagrams as needed for whichever radio I should find.  Your radio is in Beitmans, Vol.1, Pg. 167.

http://www.ebay.com/itm/Riders-Beitmans-Manuals-50-VOLUMES-OF-RADIO-SCHEMATICS-in-HIGH-RESOLUTION-/140640257885?hash=item20bed0075d:g:SR4AAOSw0kNXg8im

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"Any sufficiently advanced technology is indistinguishable from magic."
— Arthur C. Clarke
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19&41
Senior Member 75+ Posts
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Join date : 2014-08-19

PostSubject: Re: My First Radio Forum   October 17th 2017, 1:39 pm

Brunswick units always have superior cabinetry.  That was their drawing card.

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"Any sufficiently advanced technology is indistinguishable from magic."
— Arthur C. Clarke
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