[Jukebox-list] Slightly OT--speaker

[Wesley Dean]

    Ron, almost all of the speakers of this vintage were an early type pf 
'magnetic'. They had a moving vane in a magnetic field and a high impedance 
coil around the vane. Somewhat similar to the early magnetic reproducers 
used in tone arms. The square box may be a transformer, but I cannot imagine 
why. Most of these speakers were connected directly to the plate of a triode 
output tube. The speakers of this type were famous for their lack of low 
frequencies, sounded like Rudy Valle. Wes
----- Original Message ----- 
From: "Don Tutt" <dontutt at telus.net>
To: "Jukebox mailing list" <jukebox-list at lists.netlojix.com>
Sent: Monday, May 22, 2006 10:55 PM
Subject: Re: [Jukebox-list] Slightly OT--speaker


> Ron, I have one but haven't had the time to open it up and investigate.
> There is a picture of it on my radiomuseum website.
>
> http://www.donsradiomuseum.com/photogallery/photo00027621/oRadiola100a.jpg
>
> Sorry can't be of further help just now. Too many things going on.
> Don
>
>
>
>
> ----- Original Message ----- 
> From: "Ron Rich" <ronnnrich at yahoo.com>
> To: <jukebox-list at lists.netlojix.com>
> Sent: Monday, May 22, 2006 6:35 PM
> Subject: [Jukebox-list] Slightly OT--speaker
>
>
>> Hi All,
>>  Does anyone know anything about an RCA model 100 speaker ?  A "friend" 
>> of mine "acquired" one and it's nothing like any other speaker that I 
>> have seen. It was made circa 1925, and contains an open horseshoe magnet 
>> and it's got some kinda square box at the bottom--no wires of any kind 
>> are left on/in it.
>>  Any info as to what the "box" is and how to test it--hook it up, would 
>> be appreciated !!  TIA !  Ron Rich
>>
>>
>> ---------------------------------
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>> Voice.
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