[R-390] Anyone interested in yet another R390A crystal list?

[dmartin]

Nice job, Tom.

About two years ago I got written quotes via e-mail from International Crystal for all 
of the 390A crystals. As you have said, simply providing them with the CR-series 
designator and frequency was all they needed. At that time, any of the 15 CR-36/U 
crystals were $24.95, the 17.000 meg CR-27A/U was also $24.95, the 200.000 kHz CR-47/U 
was $85.54, and the 455 kHz CR-45/U was $85.54. For perspective only, this would have 
made a complete re-crystaling a nearly $600 undertaking! I suppose an a la carte 
selection of one or two specific crystals, as needed, wouldn't be a bad deal, assuming 
Fair Radio and other usual sources of used crystals were unavailable.

Again, this quote was 2-3 years ago so today it would likely be more.

73

Dan
WB4GRA



---------- Original Message -----------
From: Tom Norris <r390a at bellsouth.net>
To: r-390 at mailman.qth.net
Sent: Mon, 21 Aug 2006 19:49:25 -0500
Subject: [R-390] Anyone interested in yet another  R390A crystal list?

> If anyone is interested in taking a look, I threw together a quick  
> all-encompassing R-390A crystal list.
> This list cross references band position with crystal frequencies and  
> oscillator out and is a bit easier to read, IMHO than the diagram in  
> the y2k manual.  This builds on Nolan's crystal list that gave the  
> milspec information for the crystals.
> 
> http://r390a.fernblatt.net/xtals_390a.pdf
> http://r390a.fernblatt.net/xtals_390a.gif
> 
>