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 Post subject: Tip: Antenna for 1920s Battery Radio (non-superhet)
PostPosted: Jun Thu 25, 2020 6:17 pm 
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Joined: Jan Tue 07, 2020 1:41 am
Posts: 4369
Location: Belleview, FL 34420
If you are starting into the typical 5 tube 201A tube 1920s radio side of the hobby you must use a long wire outdoor antenna. I tried a 20 foot wire and can not hear anything. Placing a 150 foot outdoor wire wakes up the radio. I believe the minimum outdoor wire should be 60 feet with 100 feet being better.

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 Post subject: Re: Tip: Antenna for 1920s Battery Radio (non-superhet)
PostPosted: Jun Thu 25, 2020 7:03 pm 
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Joined: Jul Tue 15, 2008 6:13 pm
Posts: 9648
Location: Gretna, Nebraska
jimbenedict wrote:
If you are starting into the typical 5 tube 201A tube 1920s radio side of the hobby you must use a long wire outdoor antenna. I tried a 20 foot wire and can not hear anything. Placing a 150 foot outdoor wire wakes up the radio. I believe the minimum outdoor wire should be 60 feet with 100 feet being better.


As with so many things, the local quality of reception at a location dictates how much antenna is needed.

Yes, longer is generally better, but in my home, I have had some very good results with 20-25 feet of wire strung out across the floor connected to my 1920's radios. Even my Radiola III will receive with shorter length antennas.

In your location, maybe a longer antenna is the only way to get decent reception.

Like with many things, there are not always absolutes that apply to every radio and all situations.

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Last edited by processhead on Aug Sun 16, 2020 3:16 pm, edited 1 time in total.

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 Post subject: Re: Tip: Antenna for 1920s Battery Radio (non-superhet)
PostPosted: Jun Thu 25, 2020 7:17 pm 
Member

Joined: Jan Tue 07, 2020 1:41 am
Posts: 4369
Location: Belleview, FL 34420
processhead wrote:
jimbenedict wrote:
If you are starting into the typical 5 tube 201A tube 1920s radio side of the hobby you must use a long wire outdoor antenna. I tried a 20 foot wire and can not hear anything. Placing a 150 foot outdoor wire wakes up the radio. I believe the minimum outdoor wire should be 60 feet with 100 feet being better.


As with so many things, the local quality of reception at a location can dictates how much antenna is needed.

Yes, longer is generally better, but in my home, I have had some very good results with 20-25 feet of wire strung out across the floor connected to my 1920's radios. Even my Radiola III will receive with shorter length antennas.

In your location, maybe a longer antenna is the only way to get decent reception.

Like with many things, there are not always absolutes that apply to every radio and all situations.

I am 70 miles from strong AM radio stations. If I was within 5-10 miles of a powerful station a short 25 wire would likely hear the local stations. The 150 foot antenna I used brings in the powerful (not weak) stations almost as good as my 11 tube superhet 70 miles away. But I want far away stations and 25 feet does not work. and I would not suggest 25 feet for long distance stations at any location.

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 Post subject: Re: Tip: Antenna for 1920s Battery Radio (non-superhet)
PostPosted: Aug Sun 16, 2020 1:44 pm 
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Joined: Aug Mon 18, 2008 3:17 pm
Posts: 1192
Location: Dallas Tx.
You can use a short indoor antenna with a ferrite core antenna coil and variable capacitor in series.


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 Post subject: Re: Tip: Antenna for 1920s Battery Radio (non-superhet)
PostPosted: Aug Fri 21, 2020 1:28 pm 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 1246
Location: St. Louis, MO, USA
Most radios of this vintage need a good ground. Either a cold water pipe or a ground rod.

Dennis


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 Post subject: Re: Tip: Antenna for 1920s Battery Radio (non-superhet)
PostPosted: Dec Mon 14, 2020 1:03 am 
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Joined: Aug Mon 18, 2008 3:17 pm
Posts: 1192
Location: Dallas Tx.
Vintage broadcast band xtal set instructions state:
50 to 150 ft antenna as high as possible.
With a 3 ft ground rod as close as possible to the set.
*
Antenna tuners designed for early A/C sets work good tuning short battery set antennas.
*
Short indoor antennas should be kept away from walls and ceiling by a minimum of 2 inches. I use 18 inches.
Some battery circuits work OK with a counterpoise ground wire laid on the floor below the antenna.


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