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 Post subject: Earphone for Vintage Transistor Radio
PostPosted: Jan Sat 18, 2020 4:53 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 532
Location: Cheyenne, Wyoming, USA
I am looking to get a modern copy of the earphone that was supplied with the Zenith Trans-Oceanic Royal 1000, and 3000. I know what they looked like and there are a number of sources for replicas. I don’t know its impedance, and I don’t know the details of the transducer. Most all.of the duplicates of the originals are piezo-electric and are 600 Ohms impedance. Would this be the correct one to get? This earphone is the only thing missing from my 1958 ZTO. Royal.1000.


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 Post subject: Re: Earphone for Vintage Transistor Radio
PostPosted: Jan Sun 19, 2020 12:26 am 
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Joined: Aug Wed 24, 2011 4:35 am
Posts: 4885
Location: Sunnyvale CA
Transmaster wrote:
I am looking to get a modern copy of the earphone that was supplied with the Zenith Trans-Oceanic Royal 1000, and 3000. I know what they looked like and there are a number of sources for replicas. I don’t know its impedance, and I don’t know the details of the transducer. Most all.of the duplicates of the originals are piezo-electric and are 600 Ohms impedance. Would this be the correct one to get? This earphone is the only thing missing from my 1958 ZTO. Royal.1000.


That one, or almost anything like it, would work. It manages to drive a 8 ohm speaker OK, it will have no problem with 600 ohms, or much more.

Brett


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 Post subject: Re: Earphone for Vintage Transistor Radio
PostPosted: Jan Sun 26, 2020 1:08 am 
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Joined: Jan Thu 01, 1970 1:00 am
Posts: 532
Location: Cheyenne, Wyoming, USA
That is what I thought. Thanks.


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