[R-390] 200kc crystals?

[Roy Morgan]

On Jul 31, 2008, at 7:30 PM, Barry wrote:

> I was looking at the latest Fair Radio catalog and came across the  
> following:
>
> http://www.fairradio.com/catalog.php?mode=viewitem&item=6348
>
> I'm not familiar with that case type but perhaps it would be  
> compatible?  I know the 200kc crystals are hard to find.

Barry,

The case is described as CR-2D, and the pins are the size of an octal  
tube.  Unless the outer sleeve can be unsoldered, they won't fit the  
oven socket.

Also, I don't know what the CR-2D specs are, but the one used in the  
R-390's is meant for oven operation - 75 degrees C I think.  What the  
CR-2D would do under those conditions, I have no idea.  Of course you  
could turn off the oven, but then the 17 mc crystal would be running  
cold.

Roy

Roy Morgan
13033 Downey Mill Rd
Lovettsville, VA 20180
k1lky at earthlink.net

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