[HomeBrew] NEED 9.46 MHz (or there-abouts) Xtal, have Xtals to swap

Philip ndb_fch-344 at sbcglobal.net
Mon Feb 5 21:01:02 EST 2007


Hi All,

Work on my "Zero Cost" 10 Meter beacon is proceeding nicely. I have the 
basic TX chain set up, cleaned out most of the Receiver only and audio chain 
junk, removed the modulation transformer and jumpered the final stage 
directly to the +12 Volt line.

This Xceiver is pretty straight forward, with two Xtals.  10.24MCs for the 
PLL and 10.695MCs for the TX mixer.  Substituting a 10.24MC Xtal for the 
10.695 Mixer Xtal raised the TX frequency by 455KC, just what I'd expect. 
So, replacing the 10.695 Xtal with one of 9.46MC would put me where I need 
to be (in the area of 28.2-28.3MCs).

ACTUALLY, I could probably use any Xtal from 9.4 to 9.5 MCs just fine (and 
maybe further since there are 40 "channels"to play with).

Anybody have one of these critters.  Any style of 'reasonable' size would 
probably do, though one of the little metal cans with solder leads would 
probably be 'best'.

I have a number of Xtals that I could probably swap one for.  Values like 
4MC, 8MC, 12 MC, 15MC, 10.24MC, 10.695MC.  I even have a very nice plug-in 
455KCs Xtal in a glass envelope.  It looks exactly like a 7 pin miniature 
tube.  I prefer a swap as I need to keep this project at "Zero Cost" (no 
budget for it).

73 de Phil,  KO6BB
DX begins at the noise floor!

THE BEACONEER'S LAIR:   http://www.geocities.com/ko6bb/
MY RADIO-LOGS:       http://www.geocities.com/ko6bb/Logs/
QSL GALLERY: http://photobucket.com/albums/f306/KO6BB/
Merced, Central California,    37.3N  120.48W  CM97sh



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