[Jukebox-list] Warning

[John Robertson]

Ron Rich wrote:
> Jackie,
>   There is a slight difference, as I remember it, but I don't think anybody would be able to hear the difference--Ron Rich
>   
As I recall the big difference tends to be the resistance of the field 
coil on the speaker. This should be a close match to the original design 
resistance so the amplifier is set up correctly for the B+ voltages. the 
schematic for the amp will show this value. The voice coils were either 
8 or 16 ohms. Wurlitzer used 8 and Seeburg used 16 (I think). The only 
difference would be a bit less volume if in the wrong machine, but 
unless you play it at full volume all day long I can't see it bothering 
the output transformer much.

You can use a modern permanent magnet speaker, but you still need a 
resistor to do the job of the field coil - 50 watts should be fine (25 
might work but will be hotter) at whatever resistance you need.

John :-#)#
> etreble7 <etreble7 at verizon.net> wrote:
>   Ron,
> speaking of "speakers", lol, when Mel was here helping me with the wiring on 
> the Trashcan, he mentioned the speaker came from a Wurlitzer. Does it make 
> a difference? It looks like it came from the Trashcan, fits like a glove, 
> but I guess in the 40's the large speakers were basicly built to the same 
> specs? just wonderin
> Jackie
>
>
> ----- Original Message ----- 
> From: "Ron Rich" 
> To: 
> Sent: Thursday, December 06, 2007 11:41 AM
> Subject: [Jukebox-list] Warning
>
>
>   
>> Hi All,
>> Just killing time this am--looking at eBay and found item # 279175370054 
>> which is stated to be a "SS-160 right speaker". Well, while the door that 
>> it's mounted on appears to be from a
>> SS-160, the speaker ain't ! It appears to be one from a LPC model, which 
>> is not interchangable. Also I noticed that it's offered by "steelbear 
>> 123". Need I say more? Ron Rich
>>
>>     


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