[DCboatanchors] Re: GB> RE: home brew

[Brian Carling]

Facinating - I have never seen any from that series.
And I have seen MANY crystals in my time!

On 20 Jan 2006 at 18:47, N2EY at aol.com wrote:

> 
> In a message dated 1/20/06 7:01:46 AM Eastern Standard Time, bcarling at cfl.rr.com writes:
> 
> 
>     > does the FT241 crowd have any crystals that are up in the BC348 IF range
>     > (900_+Khz?)
>     > 
>     > are there any?
>     
>     I don't think they go that high.
> 
> 
> 
> The common FT-241s with channel numbers 0-79 or 270-389 don't go that high.
> 
> But as Obi-Wan said "There is another" (series)
> 
> The other series is laveled by channel number, but the channels are decimal. They range from 
> 70.1 to 99.9, by tenths, and the xtal frequencies go from 730.208 to 1040.625 kc., spaced 1.042 
> kc per channel. 
> 
> Channel 96.0 is right on 1000 kc. Channels 86.5 to 95.9 will double into the 160 meter band. 
> Channel 84.0 is 875.000, which is quadruples to 3500 and could be a good low-end cal crystal. 
> 
> The frequency formula is: 
> 
> Xtal frequency (kc) = channel number /.096 
> 
> Of interest to the BC-348 owner are the channels near 87.9
> 
> They're rare but they do exist. I had a few - none near 915 kc.
> 
>     
>     Could you use 1000 or 1005 kHz crystals? I have a few of 
>     those and could probably come up with more.
>     
>     I am also looking into getting some 100 kHz, 455 kHz and 
>     1700 kHz crystals soon.
>     
>     There seems to be a great need for these things.
> 
> 
> The 1700s could be used in band-imaging 80/40 GB receivers. 
> 
> 73 de Jim, N2EY