[Boatanchors] SP-600 J-11

[rbethman]

Bry,

Contact Al Parker. <anchor at ec.rr.com>

He has worked on some number of these.  I expect that Al would be VERY 
knowledgeable about what crystals are used, and probably has the/a 
manual that discusses this.

Bob - N0DGN

On 3/10/2010 3:14 PM, Radios R. Me wrote:
> Thanks Bob - do you know if these are fundamental crystals that just run at, or close
> to the desiredreceive frequency? If so, are the FT243 types (if you happen to know!)
>
>
> I had a couple of people asking me for crystals for their SP600 radios, so they
> must be the versions of the radio that have the sockets in them already...
>
>
> 73 - Brian "Bry" Carling, AF4K
> = = =
> Please use my main e-mail address:  af4k at hotmail.com
>
>
>
>
> ________________________________
> From: rbethman<rbethman at comcast.net>
> To: Boatanchors Mail List<boatanchors at mailman.qth.net>
> Cc: Radios R. Me<radios_r_me at yahoo.com>
> Sent: Wed, March 10, 2010 12:01:50 PM
> Subject: Re: [Boatanchors] SP-600 J-11
>
>   Bry,
>
> The Northern SP-600 doesn't have the module that is in the JX-17 for
> crystal placement and selection.
>
> That module came along quite a bit after the "early" variation.
>
> They allow for fixed frequency use, I think.  Not having had one of
> those, I can't really say.
>
> The Northern Radio contract, NO bsr 57519, apparently was in the '50s.
> It had as part of the "system", two of their SP-600s, a LMO, Local
> Master Oscillator, and speaker all in a rack.
>
> The LMO would set the frequency for BOTH receivers.  There were two
> antennae, one attached to each receiver.
>
> Well, I got a bit long.  However, I do not see immediately, a way to
> add this crystal module, and certainly have never seen them separate.
> I believe that they were factory installed.
>
> Bob - N0DGN
>
> On 3/10/2010 10:57 AM, Radios R. Me wrote:
>    
>> Hi
>> Bob - do you know if there is some scheme for adding crystals in the
>> SP600?
>>      
>>> I have had a few folks asking me about this lately.
>>>        
>>      
>>> If so, would they be for fixed frequency operation? extra bands or what?
>>>        
>>
>>      
>>> 73 - Brian "Bry" Carling, AF4K
>>>        
>> = = =
>>      
>>> Please use my main e-mail address: af4k at hotmail.com
>>>        
>
>
>
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|               AM Amateur Radio Operator    NØDGN                 |
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| Bob Bethman                \\\|///     " The absence of a danger |
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