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| Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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1st Apr 2020, 12:20 pm
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#1 |
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Dekatron
Join Date: Sep 2005
Location: Seaford, East Sussex, UK.
Posts: 5,997
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Ex-transistor ferrite rod as tuned antenna
I would like to try to clean up MW reception on a 1930 valve radio without having a rotatable 4ft square loop antenna in the room. Is there any mileage in using an old ferrite rod aerial from a transistor radio? Has anyone tried it?
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1st Apr 2020, 12:25 pm
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#2 |
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Moderator
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 21,289
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Re: Ex-transistor ferrite rod as tuned antenna
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Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
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1st Apr 2020, 1:00 pm
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#3 |
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Rest in Peace
Join Date: Apr 2011
Location: Matlock, Derbyshire, UK.
Posts: 1,378
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Re: Ex-transistor ferrite rod as tuned antenna
Both loops pick up the same signal so I do not think you will get any improvement but it is worth a try. The ferrite cored loop will be easier to position in a good place.
You will need to put on sufficient turns to get the same inductance, |
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1st Apr 2020, 2:18 pm
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#4 |
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Hexode
Join Date: Mar 2008
Location: Bristol, UK.
Posts: 388
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Re: Ex-transistor ferrite rod as tuned antenna
Popular electronic circuits No2,R A Penfold-Active MW aerial,ferrite rod and a VN10KM MOSFET looks promising.Les
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1st Apr 2020, 4:28 pm
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#5 |
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Dekatron
Join Date: Sep 2011
Location: Rugeley, Staffordshire, UK.
Posts: 8,833
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Re: Ex-transistor ferrite rod as tuned antenna
Some 1950s Grundigs had a neat ferrite rod aerial that you could mechanically rotate using a knob on the front of the set.
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A digital radio is the latest thing, but a vintage wireless is forever.. |
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