[time-nuts] How to open solder-sealed OCXOs?
EWKehren at aol.com
EWKehren at aol.com
Sun Feb 2 19:15:58 UTC 2014
If I want to reuse the can I use a torch, very fast several HP 5061 HV cans
mainly
Bert Kehren
In a message dated 2/2/2014 1:52:06 P.M. Eastern Standard Time,
actast at hotmail.com writes:
It has been a long time since I opened one of these, but at the time I
remember thinking it must be possible to open one of these without deforming
it. Like anything correct technique must be the key. Companies like Wenzel
do this on a daily basis and I would guess their technique would include a
hotplate or hot air reflow. I think it is possible open with minimal
deforming of the metal case even with a regular solder station by wicking one
side and and sliding paper or other thin material to keep the solder from
re-tacking when you heat the next side.
Thomas Knox
> From: albertson.chris at gmail.com
> Date: Sun, 2 Feb 2014 09:28:28 -0800
> To: time-nuts at febo.com
> Subject: Re: [time-nuts] How to open solder-sealed OCXOs?
>
> I've not opened on of these cans but I have opened some shield audio
> transmitters. I just use my Hakko temperature controlled solder station
at
> a high setting and work my way around the edge. It can be done
> non-detructivly. Solder wick helps a lot, use a bunch of it to get rid
of
> the excess solder. The tiny tip on a temperature controlled solder
> pencil does not look very powerful but the temperer controller will crank
> up the watts to whatever is required for the job. I think mine limits
out
> at 80W. So just a normal solder station can work. It works for both
the
> muMetal cans and the steel cans
>
>
> On Sun, Feb 2, 2014 at 8:53 AM, <EWKehren at aol.com> wrote:
>
> > Hi
> > I use wire cutters like on a Morion I find a small lip and start
pealing it
> > away. No trauma for the OCXO and simple.
> > Bert Kehren
> >
> >
> > In a message dated 2/2/2014 10:07:36 A.M. Eastern Standard Time,
> > lists at rtty.us writes:
> >
> > Hi
> >
> > If you are tossing the can, a mill is by far the best way to open up
an
> > OCXO. That of course assumes you have a mill...
> >
> > It's not a chip intensive process. You can easily do it with an X/Y
table
> > on a drill press. Of course that assumes you have all of that
stuff....
> >
> > Bob
> >
> > On Feb 2, 2014, at 2:37 AM, Stewart Cobb <stewart.cobb at gmail.com>
wrote:
> >
> > > What's the best way to open an OCXO in the typical solder-sealed
tinned
> > > steel can? I don't mind destroying the can itself, as long as the
> > innards
> > > are not harmed. The goal is to run some experiments with thermal
> > impedance
> > > as discussed here last week, and to ovenize parts of the EFC
controller
> > for
> > > better stability.
> > >
> > > Cheers!
> > > --Stu
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>
>
> --
>
> Chris Albertson
> Redondo Beach, California
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