[R-390] 200 kHz Crystal

[James A. (Andy) Moorer]

They are obtainable. Jan crystals (http://www.jancrystals.com/) or MH 
Electronics (http://www.mhelectronics.com/) will be happy to make them up 
for you. I have obtained crystals from JAN of up to 21 MHz (they advertise 
only up to 17, but they can do higher). Last time I did it, they cost about 
$15 and took about 6 weeks for delivery. They can put them in the HC-6/U 
package and everything.

James A. (Andy) Moorer
www.jamminpower.com

----- Original Message ----- 

> Still looking for a 200 khz crystal for the Calibrator.  Fair Radio is out
> of stock.  I hear that since the heater for the 200 kHz and 17 MHz 
> crystals
> are always on, that the life of these is limited.  Is anyone interested in
> developing a frequency doubler for a standard 8.5 MHz crystal to replace 
> the
> unobtainium 17 MHz crystal?
>