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LF: Re: Looking for 500 Khz xtal unit , any freq , inside 501 504 Khz

To: <[email protected]>
Subject: LF: Re: Looking for 500 Khz xtal unit , any freq , inside 501 504 Khz ,
From: "Alan Melia" <[email protected]>
Date: Wed, 23 Jul 2008 22:05:13 +0100
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Hi Graham 500khz crystals are quite difficult to make and certainly you
wount fine one in a smaller package than HC6/U as far as I remember. There
are some 10X series rocks that were used in one of the frequency calibrators
(No 10 I think) They will need chasing up a little with some "scouring
powder". I think that is probably the best bet.....good luck finding
one...... I have one but its part of my crystal collection so not for sale
:-))

I have seen 453.xx kHz crystals in HC6/U but never come across any 500kHz.
You could always put a 500kHz ceramic resonator inside an HC6/U case !!

Cheers de Alan G3NYK


----- Original Message -----
From: "Graham" <[email protected]>
To: <[email protected]>
Sent: Wednesday, July 23, 2008 9:14 PM
Subject: LF: Looking for 500 Khz xtal unit , any freq , inside 501 504 Khz ,


Looking for  500 Khz xtal unit , any freq ,  inside 501 504 Khz ,

Pref round  502 KHz , fundamental,  needs to  be a 'big' one , for a  valve
oscillator  !

I assume hc6u would be ok  or bigger , these look to  be the right type !

http://hipme.com/weblogs/wa5znu/20050302210827/xtals.jpg

Tnx - G ..




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