The original part (AV4 REF1200 board ECL01) was the following OCXO:
Vectron
OX-204-0005
10.000000 MHz
3170293-0016
1530
Size: 25x25x15mm
Input Voltage is 15V, power should be between 8.5 dBm to 14.5 dBm - we are
still trying to find an appropriate replacement part.
On 18.02.2026, at 18:10, Gary Thompson via groups.io wrote:
OCXO is a type of oscillator manufactured by a number of different maker ,
do you have a picture of the part, of course serial numbers etc maybe
underneath.
Entering OXCO into mousers search box brings up ~556 results!
Dr Gary S Thompson NMR Facility Manager
CCPN CoI & Working Group Member
Wellcome Trust Biomolecular NMR Facility
School of Natural Sciences
University of Kent, Canterbury, Kent, England, CT2 7NZ
☎:01227 82 7117
✉️: g.s.thompson_at_kent.ac.uk
On 18 Feb 2026, at 15:41, Bob Berno via groups.io wrote:
Hello Christoph,
Unfortunately, I don't know of a commercial supplier for your defective crystal
oscillator. I hope that one of our colleagues in the AMMRL can help you
source that part.
Thank you for passing along these observations and diagnosis.
I was just thinking that we might start seeing some of these components failing
in the NEO consoles. Most of our NEO consoles are six or seven years old,
so I guess not quite as old as yours.
Anyway, I will be interested to learn about potential suppliers for the components
in our NEO consoles. I may not need them today, but it is just a matter
of time.
Good luck,
Bob.
On 2026-02-18 2:29 a.m., Kreutz, Christoph Roman via groups.io wrote:
Dear all,
We have a failed AV4 REF1200 ECL01 board in a 2017 Avance Neo console. Our
diagnostics indicate that the oven-controlled crystal oscillator (OCXO) is
defective. When we supply a 10 MHz sine-wave reference from an external signal
generator via the J1 10 MHz remote input, the board operates normally again.
Does anyone know of a commercial supplier for the OCXO used on the REF1200
board, or an equivalent replacement?
Thank you in advance for your help.
Best regards,
Christoph
---
Assoc.-Prof. Christoph Kreutz
L.02.043, CCB, Organic Chemistry
University of Innsbruck
Innrain 80/82
6020 Innsbruck
Austria
Phone: ++43 512 507 57725
Mail: christoph.kreutz_at_uibk.ac.at
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Received on Wed Feb 18 2026 - 10:14:27 MST