Paul Flinders wrote:
On 28/07/2012 22:38, John Miles wrote:
I can't guarantee anything, but I'd be surprised if Fluxclene
didn't do the trick:
http://www.electrolube.com/docs/cleaningmain.asp?id=13
Thanks I'll give it a try.
Also try some naptha (sold as lighter fluid, or as a product
On 29/07/12 07:21, Mike Millen wrote:
Fluxclene is also excellent for removing glue residue left by labels,
etc.
Yes, I saw your previous message and certainly plan to try it (might try
some lighter fluid first). In fact was going to order it from link you
posted until I hit the £12
Paul Flinders wrote:
On 29/07/12 07:21, Mike Millen wrote:
Fluxclene is also excellent for removing glue residue left by labels,
etc.
Yes, I saw your previous message and certainly plan to try it (might
try some lighter fluid first). In fact was going to order it from
link you posted until I
the top may have re-soldered a problem connection.
Ron
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Paul Flinders
Sent: Thursday, July 26, 2012 2:59 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 5MHz
On 27/07/12 03:17, Tom Miller wrote:
I agree with Ron. Clean the board up real good then do an inspection.
Talking of which does anyone have any suggestions as to with what? I've
tried IPA, ethanol, acetone and even some of the tiny amount of 1,1,1
trichloroethane I have left (yes, I know
Paul Flinders wrote:
On 27/07/12 03:17, Tom Miller wrote:
I agree with Ron. Clean the board up real good then do an inspection.
Talking of which does anyone have any suggestions as to with what?
I've tried IPA, ethanol, acetone and even some of the tiny amount of
1,1,1 trichloroethane I have
On 28/07/12 21:13, Mike Millen wrote:
Paul Flinders wrote:
On 27/07/12 03:17, Tom Miller wrote:
I agree with Ron. Clean the board up real good then do an inspection.
Talking of which does anyone have any suggestions as to with what?
I've tried IPA, ethanol, acetone and even some of the tiny
I can't guarantee anything, but I'd be surprised if Fluxclene didn't
do the trick:
http://www.electrolube.com/docs/cleaningmain.asp?id=13
Thanks I'll give it a try.
Also try some naptha (sold as lighter fluid, or as a product called
Goof-Off.)
-- john, KE5FX
Miles Design LLC
On 28/07/2012 22:38, John Miles wrote:
I can't guarantee anything, but I'd be surprised if Fluxclene didn't
do the trick:
http://www.electrolube.com/docs/cleaningmain.asp?id=13
Thanks I'll give it a try.
Also try some naptha (sold as lighter fluid, or as a product called
Goof-Off.)
goof-off
On 27/07/12 03:17, Tom Miller wrote:
I agree with Ron. Clean the board up real good then do an inspection.
With a microscope if you can get your hands on one. Look for cracked
SMT parts. The high heat from the oven could very well stress the
parts causing a failure. Flux the board up and hit
Ron Ward sayeth:
Hi:
I have been looking at the poor quality solder joints on the oscillator.
If you have a steady hand and a small tipped soldering with silver
baring (about 2% silver) solder, I would re-solder the connections. Many
of them do not look properly wetted and cold. Some of the heat
On 25/07/12 23:36, Ed Palmer wrote:
Take another look at flea bay. If you search for 5 mhz oscillator
and weed out the trash there are a few decent looking units.
I had searched for 5MHz ocxo which is why I didn't see the ones you
found. Having said that the result is slightly frustrating
On 25/07/12 23:10, Bob Camp wrote:
Hi
That's just a basic solder sealed package. It should be pretty easy to pop
open. You'll use up a bit of solder wick doing it…
I'm still sort-of hoping someone with experience will offer but I'm
leaning towards having a go at some point.
My natural
-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Ed Palmer
Sent: Wednesday, July 25, 2012 8:28 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 5MHz ocxo
I haven't heard of that trick before, but it sounds interesting. What's
the wattage
Hi,
Note that the 1804M, also has a 1PPS output. This is coming directly from
the GPS module 1PPS. The Trimble SV6 module I have in my units is only
good to 1us, almost a 1000 times worse than a Tbolt. I am not sure if the
SV6 has a sawtooth error message giving a good estimate on how wrong the
On Wed, July 25, 2012 10:05 pm, Paul Flinders wrote:
There is a UK supplier of HCD Research ocxo's and although the HCD-66 is
clearly obsolete, a current unit - the HCD-660 looks about the right spec
(http://www.golledge.com/docs/products/ocxos/hcd660.htm). However
I'm pretty certain that if I
-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Ed Palmer
Sent: Thursday, July 26, 2012 12:43 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 5MHz ocxo
I'm not the original poster with the dead oscillator, but I have done
18:10:55 -0400
From: Bob Camp li...@rtty.us
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: Re: [time-nuts] 5MHz ocxo
Message-ID: a99eee8d-e120-48cf-84d6-d3434b754...@rtty.us
Content-Type: text/plain; charset=windows-1252
Hi
That's just a basic solder
and frequency measurement'
time-nuts@febo.com
Sent: Thursday, July 26, 2012 12:05 PM
Subject: Re: [time-nuts] 5MHz ocxo- Opening Solder sealed cans
Hi
Standard approach:
1) Secure the top of the part (the cover) in a vise. You need something
between the cover and metal jaws to keep it from wicking
Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Tom Miller
Sent: Thursday, July 26, 2012 12:49 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 5MHz ocxo- Opening Solder sealed cans
Hi Bob,
Did you look at his pictures
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Ed Palmer
Sent: Thursday, July 26, 2012 12:43 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 5MHz ocxo
I'm not the original poster with the dead oscillator
On 26/07/12 17:49, Tom Miller wrote:
Hi Bob,
Did you look at his pictures of the oscillator? I think the base will
need to be secured and the top pulled off. This is different from most
of the OCXOs I have seen.
I'm somewhat tempted to try putting the bottom in the vice, heating the
whole
@febo.com
Sent: Thursday, July 26, 2012 2:20 PM
Subject: Re: [time-nuts] 5MHz ocxo- Opening Solder sealed cans
On 26/07/12 17:49, Tom Miller wrote:
Hi Bob,
Did you look at his pictures of the oscillator? I think the base will
need to be secured and the top pulled off. This is different from most
On 26/07/12 20:49, Tom Miller wrote:
Pick up a few sticks of ChipQuik and mix it in with a good iron. Then,
you may do just what you say. It should melt below about 95°C.
A good hot air heat gun would most likely do the trick. Maybe use some
solder wick first to lower the amount of tin/lead
OK
I get to add 10 cents here.
Yes indeed various foam stuff goes to heck after many years and can indeed
become this strange goo-ie stuff. Or it gets all flakey. Well the good news
is stuff seems to work and that can be frustrating. So I would suggest the
very deep dive and look at all of the
the top may have re-soldered a problem connection.
Ron
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Paul Flinders
Sent: Thursday, July 26, 2012 2:59 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 5MHz
and frequency measurement
Subject: Re: [time-nuts] 5MHz ocxo- Opening Solder sealed cans
On 26/07/12 20:49, Tom Miller wrote:
Pick up a few sticks of ChipQuik and mix it in with a good iron. Then,
you may do just what you say. It should melt below about 95°C.
A good hot air heat gun would most likely do
How about a 10 MHz OCXO and a divide by two chip? Maybe an op-amp to
change and/or invert
the control voltage?
On 07/25/2012 02:05 PM, Paul Flinders wrote:
I've finally had chance to pull my Rapco 1804M GPS conditioned
oscillator apart to try to debug it.
To recap I bought this a few
Can you post up a few pictures of the oscillator?
There have been people that have opened these up and repaired them. If you
feel not up to it, why not see if someone on this group can help.
Repairing it will eliminate a lot of searching.
Tom
- Original Message -
From: Paul
WA7KGX N2469R c...@omen.com wrote:
From: Chuck Forsberg WA7KGX N2469R c...@omen.com
Subject: Re: [time-nuts] 5MHz ocxo
To: time-nuts@febo.com
Received: Wednesday, July 25, 2012, 5:18 PM
How about a 10 MHz OCXO and a divide
by two chip? Maybe an op-amp to change
and/or invert
the control
measurement
time-nuts@febo.com
Sent: Wednesday, July 25, 2012 5:27 PM
Subject: Re: [time-nuts] 5MHz ocxo
Can you post up a few pictures of the oscillator?
There have been people that have opened these up and repaired them. If you
feel not up to it, why not see if someone on this group can help
On 25/07/12 22:27, Tom Miller wrote:
Can you post up a few pictures of the oscillator?
There have been people that have opened these up and repaired them. If
you feel not up to it, why not see if someone on this group can help.
Repairing it will eliminate a lot of searching.
Pictures at
On 25/07/12 22:18, Chuck Forsberg WA7KGX N2469R wrote:
How about a 10 MHz OCXO and a divide by two chip? Maybe an op-amp to
change and/or invert
the control voltage?
Yes I've thought about that. In fact it might be the better way to go as
10MHz output would definitely be more useful.
I
Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Mark Spencer
Sent: Wednesday, July 25, 2012 2:49 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 5MHz ocxo
This approach could also facilitate using a higher perfromance
Hi
That's just a basic solder sealed package. It should be pretty easy to pop
open. You'll use up a bit of solder wick doing it…
Bob
On Jul 25, 2012, at 6:03 PM, Paul Flinders wrote:
On 25/07/12 22:18, Chuck Forsberg WA7KGX N2469R wrote:
How about a 10 MHz OCXO and a divide by two chip?
On 25/07/12 22:49, Mark Spencer wrote:
This approach could also facilitate using a higher perfromance OCXO. This is
after all time nuts (: I'm surprised to hear how few 5 Mhz OCXO's are avaliable
on the bay right now. Earlier this year I picked up a nice Wenzel 5 Mhz OCXO
for$100.00
Do
On 25/07/12 23:10, Bob Camp wrote:
Hi
That's just a basic solder sealed package. It should be pretty easy to pop
open. You'll use up a bit of solder wick doing it…
If there's anyone in the UK who has experience with these let me know if
you're willing to have a go.
If not I suppose I
Hi
There are a bunch of Morion OCXO's on eBay. You may or may not get a good one,
but the price is right. Most of them are significantly better than what you
have now.
Bob
On Jul 25, 2012, at 6:14 PM, Paul Flinders wrote:
On 25/07/12 22:49, Mark Spencer wrote:
This approach could also
On 25/07/12 23:19, Bob Camp wrote:
Hi
There are a bunch of Morion OCXO's on eBay. You may or may not get a good one,
but the price is right. Most of them are significantly better than what you
have now.
I suppose that the argument is that the GPS keeps the frequency to much
tighter limits
an online data sheet.
I'd be inclined to spend some time hunting down a 5 Mhz OCXO vs using a divider
though.
--- On Wed, 7/25/12, Bob Camp li...@rtty.us wrote:
From: Bob Camp li...@rtty.us
Subject: Re: [time-nuts] 5MHz ocxo
To: Discussion of precise time and frequency measurement
time-nuts
On 25/07/12 23:27, Mark Spencer wrote:
Yep... If you are prepared to go with a 10 Mhz OCXO and want to keep the costs
down the Morion units are worth looking at. I picked up two of them earlier
this year. I was pleasantly surprised at the performance. I don't recall the
spec's off hand
.
Tom
- Original Message -
From: Paul Flinders p...@flinders.org
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Wednesday, July 25, 2012 6:27 PM
Subject: Re: [time-nuts] 5MHz ocxo
On 25/07/12 23:19, Bob Camp wrote:
Hi
There are a bunch of Morion
Take another look at flea bay. If you search for 5 mhz oscillator
and weed out the trash there are a few decent looking units.
As for repairing the original, go for it. You can't make it any worse.
I would use a utility knife to scrape away as much solder as possible
but don't use the
.
Demian
_
Date: Wed, 25 Jul 2012 18:10:55 -0400
From: Bob Camp li...@rtty.us
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: Re: [time-nuts] 5MHz ocxo
-nuts@febo.com
Sent: Wednesday, July 25, 2012 7:28 PM
Subject: Re: [time-nuts] 5MHz ocxo- Opening Solder sealed cans
How about using a commercial type Hot Plate. I have one that
can be set to temp. I use it for cleaning SMD devices off PC
boards.
73, Dick, W1KSZ
-Original Message-
From
be disposable.
I hope this helps,
Ron
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Paul Flinders
Sent: Wednesday, July 25, 2012 2:59 PM
To: Tom Miller; Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 5MHz ocxo
Flinders
Sent: Wednesday, July 25, 2012 2:59 PM
To: Tom Miller; Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 5MHz ocxo
On 25/07/12 22:27, Tom Miller wrote:
Can you post up a few pictures of the oscillator?
There have been people that have opened these up
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