[time-nuts] Inside of FT1200-100

Ed Palmer ed_palmer at sasktel.net
Thu Sep 22 01:05:29 EDT 2016

I had to tear apart an FTS1200 that had a broken Dewar.  I had trouble 
getting it apart because that red rubber sheet was bonded to the glass 
of the Dewar and the oven.  Since the Dewar was smashed anyway, I was 
able to dig the oscillator out by smashing the Dewar even more.

You might be able to slide something like a feeler guage down between 
the oven and the rubber blanket to break the oscillator free.  The oven 
on mine is a plain metal cylinder.  This way, the rubber sheet should 
protect the Dewar from your feeler guage.  On mine, the mounting bolts 
for the 2N3792 transistor both have ground lugs.  I think I see them on 
yours.  You could hook something through the ground lugs and use that to 
pull the oscillator out of the rubber sheet and then remove the sheet 


On 2016-09-21 9:46 AM, time-nuts-request at febo.com wrote:
> Date: Tue, 20 Sep 2016 16:42:40 -0700
> From: Christopher Hoover<ch at murgatroid.com>
> To: Discussion of precise time and frequency measurement
> 	<time-nuts at febo.com>
> Subject: Re: [time-nuts] Inside of FT1200-100
> Message-ID:
> 	<CACw0Psbjjbc_uydz5xpvq=grRp4FMv6soUGw4qDUK-fy-ZiXcw at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
> I'm in.
> https://goo.gl/photos/SDHtvgFmftQq6vYJA
> But the EFC wire goes deeper, so I'll keep at it.   It is fighting me the
> whole way.
> -- Christopher
> 73 de AI6KG

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