[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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