About Us

May 16th 06, 05:49 PM posted to rec.radio.amateur.homebrew

In article .com,
wrote:

I have been searching for a Kenwood SO-1 temperature compensated
crystal oscillator for the last 4 years. When I did find them (eBay),
they went for a fortune because I must not be the only looking for one.
I believe the SO-1 runs at 20Mhz...are there other units that could be
substituted? I believe the Kenwood SO-2, with also runs at 20Mhz, is
still available. Can the SO-2 be wired in place of the SO-1? Or is
there more to it than that?

Scott-

You can probably find service manuals on the web for rigs that use each
version. It should be possible to get an idea how the footprints compare,
what voltages are used and how similar are the loads. It may be possible
to find another company's TCXO that could be adapted, but it may be just
as easy to adapt the SO-2.

Your best bet may be to contact Kenwood's engineering department. It is
conceivable that the two might be the same, but the SO-2 has better
specs. It is also possible that there is a version available from Kenwood
parts, identical to the SO-1, but used in their commercial radios.

Incidentally, if you do find an SO-1, the label can be peeled back to
reveal a trimmer capacitor behind a hole under the "e" in Kenwood. I
adjusted mine so the 20 MHz WWV audio tone is the same on USB and LSB. It
is also possible to setup A and B vfos for 19.999 MHz USB and 20.001 MHz
LSB, and adjust the trimmer so the 1 KHz beat notes are the same. Either
way, you need a "musical ear" to be sure the two tones are the same!

73, Fred, K4DII

Thread Tools	Search this Thread
Show Printable Version	Search this Thread: Advanced Search
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
FA: ALLIED-KNIGHT RESISTANCE-CAPACITANCE SUBSTITUTION BOX	notmeman	Equipment	0	April 4th 06 03:52 AM
FA: ALLIED-KNIGHT RESISTANCE-CAPACITANCE SUBSTITUTION BOX	notmeman	Boatanchors	0	April 4th 06 03:52 AM
Yaesu FRG 100 w/ TCXO ($129.00 option) $345 plus shipping	Ron	Swap	0	July 10th 05 03:23 PM
JRC NRD-545 CGD-197 TCXO option	mike0219116	Shortwave	2	July 20th 04 05:24 AM
WTB-Kenwood SO-2 TCXO	Jerry	Swap	0	August 2nd 03 04:09 AM

Menu

About Us