Can popped open pretty easily. Now to start to measure voltages to see if things are within tolerance.
On Sat, Jul 20, 2013 at 5:22 PM, paul swed <[email protected]> wrote: > Hello to the group. > As the various posts mention pulling the outer oven and taped wire off is > a job. But thats done. > The Osc is 45 Hz low hot and 200 Hz low cold. Bobs on target with his > comment on what to expect. It does warm up and behave as you might expect > but its all relative not exact even according to the 10811 service manual. > So it could be off temperature. But very hard to say until I get a > thermocouple in there. > Will say the various rubbery stuff and shock absorbing stuff left one heck > of a gooey mess. > Oily sticky stuff.I tried oil, alcohol, turpentine, and finally gas. None > really did anything. But what did was a soft plastic paint remover. That > peeled the old tape and goo off very nicely. > What was left was the true glue and that was removable by gas. > It went from a gooey mess that stuck to everything to a pretty clean can. > Next I used a small torch one of those small butane refillable units. Had > it for years and never really had a use for it till now. I have started the > process of opening the can. Thats not complete yet. But I cleaned enough > goo off that when I heat things I don't have a smelly smoldering mess. > Regards > Paul > WB8TSL > > > > > > > > > > > > > > > > > On Sat, Jul 20, 2013 at 1:57 PM, Bob Camp <[email protected]> wrote: > >> Hi >> >> If a 10811 oven is simply not working, the output will be > 400 Hz off >> frequency. >> >> Bob >> >> On Jul 19, 2013, at 12:48 PM, ed breya <[email protected]> wrote: >> >> > Paul, >> > >> > If the 10811 is that far off, are you sure the oven is working? A few >> years ago mine had a failure of a particular date code range of the opamp >> that controls the oven, that were prone to failure.at high temperature. >> The symptom in the Z3801A was that the outer oven seemed bad - it did not >> turn on, but it was because it was waiting for the inner one to reach >> nominal temperature, but it never did. Once you get it all apart, >> replacement of the IC is no big deal, but what a PITA to get to it. I >> vaguely recall posting the whole story on that website that has big >> coverage of the Z3801A - I can't remember the name, since I haven't been >> there in a while, but it should be easy to find. The website had all kinds >> of Z3801A info, including a nice writeup on how to take the oven apart, >> which is where I started. >> > >> > Ed >> > >> > _______________________________________________ >> > time-nuts mailing list -- [email protected] >> > To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> > and follow the instructions there. >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
