AA5 Western Royal

Reply from: Pete

Date: 24 Mar 2007, 15:29

AA5 Western Royal

http :// cgi.ebay,com /ws/eBayISAPI.dll?ViewItem&ih=014&sspagename=STRK%3AMESE%3AIT&viewitem=&item=330100724235&rd=1&rd=1

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Reply from: WindsorFox

Date: 24 Mar 2007, 16:11

Re: AA5 Western Royal

Pete wrote:
> http :// cgi.ebay,com /ws/eBayISAPI.dll?ViewItem&ih4&sspagename=STRK%3AMESE%3AIT&viewitem=&item30100724235&rd=1&rd=1
>
>

Pardon my age, but what is "an electro-dynamic speaker"???

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Reply from: Pete

Date: 24 Mar 2007, 18:19

Re: AA5 Western Royal

Many old radios don't have permanent magnets in their speakers. Instead they
use electro-magnets. Most often it does double duty as a smoothing choke
within the power supply as well as providing the magnetic field for the
speaker..........

"WindsorFox" <windsorfoxNO@SPAMcox,net > wrote in message
news:ScbNh.12565$Ng1.1282@newsfe19.lga...
> Pete wrote:
> >
http :// cgi.ebay,com /ws/eBayISAPI.dll?ViewItem&ih=014&sspagename=STRK%3AMESE%3AIT&viewitem=&item=330100724235&rd=1&rd=1
> >
> >
>
>
> Pardon my age, but what is "an electro-dynamic speaker"???

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Reply from: WindsorFox

Date: 25 Mar 2007, 04:55

Re: AA5 Western Royal

Pete wrote:
> Many old radios don't have permanent magnets in their speakers. Instead they
> use electro-magnets. Most often it does double duty as a smoothing choke
> within the power supply as well as providing the magnetic field for the
> speaker..........
>
>

OMG! I've never seen such a thing. Very interesting.

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