[Boatanchors] Pair of Crystals needed

[hwhall at compuserve.com]

Could he perhaps get away with using a crystal or crystals in a VXO type oscillator? The VXO maybe could be adjusted to pull crystal(s) that are close onto the desired frequencies.
 
Wayne

 WB4OGM



-----Original Message-----
From: K7NKS <k7nks at yahoo.com>
To: Keith Densmore <ve3gem at gmail.com>
Cc: <boatanchors at mailman.qth.net> <boatanchors at mailman.qth.net>
Sent: Sat, Mar 8, 2014 7:57 pm
Subject: Re: [Boatanchors] Pair of Crystals needed

 
 
 
Crystals for 455 KHz fall in the realm of the unobtainable dream unless you have  
a very thick wallet. 
 
Best bet is to check any buddies that have either military surplus crystals like  
others have mentioned or two-way radio surplus crystals.  
 
Years ago I scrapped out some Masters, Motracs, Micors, and Mocoms that had IF  
filters that used crystals with a 455 KHz offset from the 1st IF frequency.  
Don't remember the exact IF frequencies. 
 
73, 
Chuck, k7nks 
 
 
Sent from my iPad 
 
On Mar 8, 2014, at 3:25 PM, "Keith Densmore" <ve3gem at gmail.com> wrote: 
 
> Hi All, 
> I need a pair of crystals, any size ok although smaller is preferred. 
>  
> 453    and   457     KHZ              or 
> 452.5  and  475.5  KHZ              or 
> 452     and  458     KHZ 
>  
> For a product detector circuit for rigs with 455 KHZ IF 
>  
> Thanks, 73, 
> Keith ve3ts 
>  
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