[time-nuts] Wenzel 100 MHz Oscillators (w/ EFC) available
KA2WEU at aol.com
KA2WEU at aol.com
Fri Dec 5 23:51:39 UTC 2014
John & Skip,
as I am getting 5 such oscillators, I will open 2 or three (after
measurements of the PN ) and apply some magic...
To build something like this mechanically will be tough. The technology and
circuit design will have changed a lot in 10 + years, so I will try.
Opening the units may be the tough part.
73 de Ulrich
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I have a few of the 500-6769 parts here, and measured a couple of them
awhile back:
http://www.ke5fx.com/Wenzel_500_06769_PN.png
Not a bad price at all. If a $2000 OCXO can achieve -140 dBc/Hz at 100 Hz
and a $50 OCXO will do -117, that's almost 10 dB better than the expected
20*log10($2000 / $50) ratio. :)
-- john, KE5FX
Miles Design LLC
In a message dated 12/5/2014 2:26:24 P.M. Eastern Standard Time,
KA2WEU at aol.com writes:
I can measure all things, if you need help, tell me !
Ulrich
In a message dated 12/5/2014 2:13:34 P.M. Eastern Standard Time,
skip.withrow at gmail.com writes:
Hello Ulrich,
The units have been paid for and are being sent Priority Mail. Pleasure
doing business with you.
If you have any feedback on what the phase noise does look like I would
certainly be interested in the data.
Regards,
Skip Withrow
On Fri, Dec 5, 2014 at 11:06 AM, <_KA2WEU at aol.com_ (mailto:KA2WEU at aol.com)
> wrote:
Skip, can I have 5 , mail to me , how would you like to get paid ?
Can I give you our FedEx number .
Thanks, Ulrich
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Ulrich L. Rohde, Ph.D.
Chairman
Synergy Microwave Corporation
201 McLean Boulevard
Paterson, NJ 07504
Phone: _973-881-8800_ (tel:973-881-8800)
Fax: _973-881-1924_ (tel:973-881-1924)
In a message dated 12/5/2014 1:00:56 P.M. Eastern Standard Time,
_skip.withrow at gmail.com_ (mailto:skip.withrow at gmail.com) writes:
Hello time-nuts,
Please excuse the blatantly commercial announcement, I generally keep
business matters off the list, but I have some Wenzel oscillators that may
be of interest to time-nuts and wanted to give you first crack at them.
These are Wenzel 500-06769 units, custom number for Harris used in
microwave radios. Output is 100MHz at +20dBm. Supply input is +12 volts
DC (about 500mA at start). EFC runs between 0.5V and 4.5V with positive
coefficient and is about 335Hz/V.
Unit is in standard 2" x 2" x .75" package. Output connector is female
SMA.
These would make great units for synthesizer and DDS projects. I don't
have the ability to measure the phase noise, but should be relatively good
as they were used at microwave frequencies in their past life.
I'm asking $50 each for them and $7 (any quantity) Priority Mail shipping
to U.S. addresses only. If you would like one (or more) please PayPal to
_paypal at rdrelectronics.com_ (mailto:paypal at rdrelectronics.com) . I have
attached a picture of one unit with the
pinout.
Regards,
Skip Withrow
RDR Electronics, Inc.
_303-790-1830_ (tel:303-790-1830) 8am-5pm M-F
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