Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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The reason for the 20.8 in the T-4XC is because of the proximity of the
PTO and Car Osc second harmonics and their unwanted mixer products. IF
you look at the crystal chart for the T-4XC you'll see that the 21.1 MHz
crystal is marked DO NOT USE in the 10.1 MHz region. This is the only
region (aside from 60M) that this is a problem. 17M is fine.
International Crystal (ICM) is a reliable supplier. There are other
suppliers that have been recommended by others, but ICM is the only one
I have had experience with. I have heard negative comments about JAN
Crystals but some have had good luck. Perhaps they are inconsistent?
73, Garey - K4OAH
Atlanta
Drake C-Line Service Manual
<http://www.k4oah.com>
[EMAIL PROTECTED] wrote:
Looking at the manuals for the C-line I see that for 30m the t4XC
wants a 20.8 xtal
and the R4C wants a 21.1 xtal .....
just wondering why these values are different since xtal values are
the same for
xmt / rcv on the other freq ranges.
I wonder what is a good source nowdays for xtals ..... I would like
one for
25m SWL (22.6 xtal) and also xtals for 17m .....anyone tried the twins
on 17m....
does it work OK ? thanks jim
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