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 later. Ed On 2016-09-21 9:46 AM, time-nuts-request@febo.com wrote: > Date: Tue, 20 Sep 2016 16:42:40 -0700 > From: Christopher Hoover<ch@murgatroid.com> > To: Discussion of precise time and frequency measurement > <time-nuts@febo.com> > Subject: Re: [time-nuts] Inside of FT1200-100 > Message-ID: > <CACw0Psbjjbc_uydz5xpvq=grRp4FMv6soUGw4qDUK-fy-ZiXcw@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

On Wed, Sep 21, 2016 at 10:05 PM, Ed Palmer <ed_palmer@sasktel.net> wrote: > > 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 later. > Thanks Ed, I think the rubber sheet on mine is against metal. I haven't yet seen the glass dewar. The adhesion is huge. Do you know if the holes opposite the 2N3792 are threaded? If they are, I might try running the screws out and using those holes with longer screws as my pull points. I can't pull on the lugs hard enough -- I've tried. -christopher. 73 de AI6KG