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 Post subject: Rola Dynamic Power Speaker Model 30
PostPosted: Jun Thu 28, 2018 1:58 am 
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Joined: Oct Thu 08, 2015 1:29 am
Posts: 98
]1929 - 1930 table tops speaker. Measures 15 x 13.5 x 7. I have been searching on line. The only one I found is Model 30J. Anyone have information on the Model 30.

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 Post subject: Re: Rola Dynamic Power Speaker Model 30
PostPosted: Jun Thu 28, 2018 3:59 am 
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Joined: Apr Sun 01, 2012 9:55 pm
Posts: 9524
Location: Seattle, WA
Are you saying your model 30 is significantly different from a supposed model 30-J.

https://www.radiomuseum.org/r/rola_rola_model_30_j.html

What are the differences.


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 Post subject: Re: Rola Dynamic Power Speaker Model 30
PostPosted: Jun Thu 28, 2018 1:20 pm 
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Joined: Jan Tue 31, 2012 1:55 am
Posts: 6038
Location: Mountains of Mourne. Ireland.
The J series models have a laminated Bakelite spider support, ventilated field coil and more effective slot openings behind the cone.

https://americanradiohistory.com/hd2/ID ... e-0157.pdf
https://americanradiohistory.com/hd2/ID ... e-0112.pdf

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Greg.


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