.
Stanley
- Original Message
From: Adrianrfn...@arcor.de
To: Discussion of precise time and frequency measurementtime-nuts@febo.com
Sent: Mon, June 14, 2010 6:17:30 AM
Subject: Re: [time-nuts] Odd FTS 4060 Behavior
Bert,
I was surprised how easy oven disassembly was.
Remove the 4 (8
On 06/14/2010 05:45 AM, Glenn Little WB4UIV wrote:
This is known as gold embrittlement.
The gold has to be removed before a good solder connection is made.
To remove the gold, tin the gold plated area.
Desolder the tinning.
Retin and remove the solder three times.
This should remove the gold
Only the turned edge connector pins of the two PCB's inside the oven
appear to have that problem.
I looked under a good microscope, and the female contacts as well as the
trimmer cap, both gold plated, looked good.
Now 12 hours later, the 4060 is still running fine with no alarm light
on and no
Adrian,
you did actually broke it down to the inside oven level. Is there any thing
to look out for. I have a FTS 1200 that has a problem 2 Hz off but I have
been reluctant to open it up. Any advice?
Thanks Bert
In a message dated 6/14/2010 6:02:38 A.M. Eastern Daylight Time,
and frequency measurement
time-nuts@febo.com
Sent: Monday, June 14, 2010 1:10 AM
Subject: Re: [time-nuts] Odd FTS 4060 Behavior
I do not know why the manufacturers insist on gold plating leads that
are
designed to be soldered. Silver plating seems like a better solution.
Gold doesn't
Thank you Adrian
I did print out the instructions and one quiet day I will go for it. Thanks
again
Bert
In a message dated 6/14/2010 7:17:58 A.M. Eastern Daylight Time,
rfn...@arcor.de writes:
Bert,
I was surprised how easy oven disassembly was.
Remove the 4 (8?) screws that hold the
IMHO gold does not tarnish but below/above the amalgam of gold with solder the
solder probably will. The best solder connect will be where the different metal
layers amalgam deeply. A thicker gold plating should work better.
AGlenn Little WB4UIV wrote:
I do not know why the manufacturers
: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Raj
Sent: Monday, June 14, 2010 11:48 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Odd FTS 4060 Behavior
IMHO gold does not tarnish but below/above the amalgam of gold with solder
: [time-nuts] Odd FTS 4060 Behavior
Bert,
I was surprised how easy oven disassembly was.
Remove the 4 (8?) screws that hold the connector plate and pull it out.
Take 3 layers of rubber foam out.
Gently pull on the flex board to pull the oven out of the dewar (avoid
pulling on the tiny coaxial cable
...@febo.com]on
Behalf Of Adrian
Sent: Saturday, June 12, 2010 8:03 AM
To: time-nuts@febo.com
Subject: [time-nuts] Odd FTS 4060 Behavior
I have a FTS 4060 Caesium Frequency Standard that I never managed to
get
working properly.
When powered on, it locks properly after some 10
?
-- john, KE5FX
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on
Behalf Of Adrian
Sent: Saturday, June 12, 2010 8:03 AM
To: time-nuts@febo.com
Subject: [time-nuts] Odd FTS 4060 Behavior
I have a FTS 4060 Caesium Frequency Standard that I never
Interesting. Solder and gold don't like each other very much, and even the
more respected manufacturers don't always seem to appreciate that, when they
rely on a soldered connection to provide some mechanical stability. This
isn't the first time I've heard of FTS oscillators behaving oddly, so
Adrian, maybe I missed something which oscillator does your unit have? Bert
-Original Message-
From: Adrian rfn...@arcor.de
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Sun, Jun 13, 2010 6:08 pm
Subject: Re: [time-nuts] Odd FTS 4060 Behavior
...@arcor.de
To: Discussion of precise time and frequency measurementtime-nuts@febo.com
Sent: Sun, Jun 13, 2010 6:08 pm
Subject: Re: [time-nuts] Odd FTS 4060 Behavior
John,
yep!
The OCXO out of the 4060 and connected to a bench power supply with no tuning
voltages applied had to be trimmed to get
This is known as gold embrittlement.
The gold has to be removed before a good solder connection is made.
To remove the gold, tin the gold plated area.
Desolder the tinning.
Retin and remove the solder three times.
This should remove the gold which forms an amalgam with the solder.
After the gold
I do not know why the manufacturers insist on gold plating leads that are
designed to be soldered. Silver plating seems like a better solution.
Gold doesn't tarnish so you can get a good solder joint after it's been
sitting around for a while.
There are enough hassles with lead that
I have a FTS 4060 Caesium Frequency Standard that I never managed to get
working properly.
When powered on, it locks properly after some 10 minutes and keeps
running until it jumps off by about +1E-7. That is, the 10 MHz output
then reads 10,000,001 Hz, and the red alarm light is on.
When I
.
Stanley
- Original Message
From: Adrian rfn...@arcor.de
To: time-nuts@febo.com
Sent: Sat, June 12, 2010 10:03:15 AM
Subject: [time-nuts] Odd FTS 4060 Behavior
I have a FTS 4060 Caesium Frequency Standard that I never managed to get
working properly.
When powered on, it locks properly
Of Adrian
Sent: Saturday, June 12, 2010 8:03 AM
To: time-nuts@febo.com
Subject: [time-nuts] Odd FTS 4060 Behavior
I have a FTS 4060 Caesium Frequency Standard that I never managed to get
working properly.
When powered on, it locks properly after some 10 minutes and keeps
running until
To: time-nuts@febo.com
Subject: [time-nuts] Odd FTS 4060 Behavior
I have a FTS 4060 Caesium Frequency Standard that I never managed to get
working properly.
When powered on, it locks properly after some 10 minutes and keeps
running until it jumps off by about +1E-7. That is, the 10 MHz output
it for a long period of time
with
the loop turned off?
-- john, KE5FX
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on
Behalf Of Adrian
Sent: Saturday, June 12, 2010 8:03 AM
To: time-nuts@febo.com
Subject: [time-nuts] Odd FTS 4060
-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on
Behalf Of Adrian
Sent: Saturday, June 12, 2010 8:03 AM
To: time-nuts@febo.com
Subject: [time-nuts] Odd FTS 4060 Behavior
I have a FTS 4060 Caesium Frequency Standard that I never managed to get
working properly.
When powered
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