so how do you reach the tuning capacitor?
- Original Message -
From: "John Green"
To:
Sent: Friday, December 04, 2009 10:56 PM
Subject: Re: [time-nuts] Stinky Z3801
"Since the oscillator/inner oven can is sealed," how can you smell it?
Bill Hawkins
The point I was trying to make
"Since the oscillator/inner oven can is sealed," how can you smell it?
Bill Hawkins
The point I was trying to make, perhaps unsuccessfully, was that since the
can containing the inner oven was sealed, the smell had to be coming from
the insulation between the inner and outer ovens.
_
That's a good idea. I just spent the better part of the past hour
trying it. So far, I have made a nice pile of solder shavings and have
cramped my hand. I haven't succeeded in opening the OCXO, however. The
base fits very snug into the can, so there isn't much more I can dig
out. I'll make another
I recently had good luck opening up a soldered oscillator with a utility
knife. Rather than use the sharp edge, I used the back edge of the
blade. That way, instead of trying to push the solder aside, the blade
actually digs it out of the crack - sort of the way a cutter works in a
metal lath
you can, in some way, stumble on what this OCXO was used for, and
> you get lucky, your difficulty in finding information seems quite normal to
> me.
>
>
>
> __ Information from ESET NOD32 Antivirus, version of viru
, your difficulty in finding information seems quite
normal to me.
__ Information from ESET NOD32 Antivirus, version of virus signature
database 4661 (20091204) __
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
_
Well, I wasn't thinking that specific :-)
I was just curious about this line of OCXO's. They are rather large by
today's standards. I find it curious that I don't find any info or
history on this type of OCXO, being it is made by FEI. You'd think
their web site would have some history.
The other
Thank you for the contributions. The app notes have been moved.
Didier KO4BB
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Joe Geller
Sent: Friday, December 04, 2009 11:24 AM
To: time-nuts@febo.com
Subject: [time-nuts] hp Application
Hi
Best guess would be a system that needed to be 8 Hz off of 775 MHz after
multiplication
Bob
On Dec 4, 2009, at 6:47 PM, Joseph Gray wrote:
> Thanks for the answer. Any idea what these things were used in? I
> can't seem to find any information on the net.
>
> Joe Gray
> KA5ZEC
>
>
Do you have a cat? Has it learned to teleport urine?
"Since the oscillator/inner oven can is sealed," how can you smell it?
Bill Hawkins
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of John Green
Sent: Friday, December 04, 2009 2:39 P
Thanks for the answer. Any idea what these things were used in? I
can't seem to find any information on the net.
Joe Gray
KA5ZEC
On Fri, Dec 4, 2009 at 5:27 AM, Bob Camp wrote:
> Hi
>
> Simple answer - yes.
>
> More details:
>
> The oven and oscillator supplies are split so you can regulate the
Most likely, the inner oven has burned up in a flame of glory,
and the outer oven is doing all the work at keeping the xtal close
to the right temperature. I would say you now have a single oven
oscillator.
-Chuck Harris
John Green wrote:
I partially disassembled the reference and the smell is
With any luck, everything that has been uploaded in the last couple of days
will be moved tonight. I have been busy with other stuff...
Thank you for your patience,
Didier KO4BB
Sent from my BlackBerry Wireless thingy while I do
other things...
-Original Message-
David C. Partridge wrote:
Yep - that's OK for the future, reminds me that one day I must
build/buy/scrounge a middle aged Pentium and fit it with 5 1/4", 3.5", 3"
floppy, MO and other kit to read OLD stuff. Plus adapters for laptop IDE
drives before they vanish.
Right now tho' ...
D.
Dav
I partially disassembled the reference and the smell is coming from the
inner oven. After looking at the website that shows a complete disassembly,
it looks like the only thing that could be generating the odor is the black
foam insulation between the oscillator can and the outer oven. Since the
os
Hi Justin:
I was just reading about Digital Cinema in relation to learning more
about Home Threater,
http://www.prc68.com/I/HomeTheater.shtml
There are now thousands of movie theaters (most are the small multi
screen type) that use digital projection instead of 35 mm film. There
are many ben
Yep - that's OK for the future, reminds me that one day I must
build/buy/scrounge a middle aged Pentium and fit it with 5 1/4", 3.5", 3"
floppy, MO and other kit to read OLD stuff. Plus adapters for laptop IDE
drives before they vanish.
Right now tho' ...
D.
-Original Message-
From:
David,
You probably know this already, but you can walk into any electronics store
and buy a 16GB USB thumb drive for 20 dollars that will hold the equivalent
of 136 LS-120 floppies. You might be better served by moving your
collection to a more modern media.
Remember that magnetic media (disks,
Hi:
There are hard drive recovery services. The best one I know of is in
Novato, California.
http://www.drivesaversdatarecovery.com/
A Flordia based company could not help me and recommended the Novato
outfit. It turns out the cost of the recovery is related to the
capacity of the drive, no
I uploaded pdfs of two hp Application notes, 225 and 225-1 at Didier's ko4bb
most excellent manual website: Measuring Phase Spectral Density Of Synthesized
Signal Sources
Exhibiting f0 and f-1 Noise Characteristics With the The 5390A Frequency
Stability Analyzer (225) and Measurement Considerat
One of the sites had the innards of the 10811so that you can dive into it.
Smells will bet that the oven xisitor may have fried in the on position.
That would crispy a lot.
On Fri, Dec 4, 2009 at 10:33 AM, John Green wrote:
> I lifted the top board and after some sniffing I determined that the s
Stinky is usually pretty good. Because you should be able to sniff the
problem out. Pun intended.
My favorite part is the capacitors. They tend to go in older gear. I have
fixed a lot of test equipment by replacing poorly performing or open filter
caps.
On Fri, Dec 4, 2009 at 9:14 AM, John Green
John,
it appears to be a mess, but here you can see what to expect:
http://www.realhamradio.com/GPS-oven-journey.htm
I would think there is a problem with one of the oven regulators.
Adrian
John Green schrieb:
I lifted the top board and after some sniffing I determined that the smell
is comin
The procedure you describe is useful for a retrieving data from a drive
where some files have been corrupted rendering the system non-bootable. But
NO operating system (not even MacOS) can cure a drive that has suffered a
complete hardware failure. It's just not possible.
On Fri, Dec 4, 2009 at 9
I lifted the top board and after some sniffing I determined that the smell
is coming from the 10811 reference oscillator can. I don't know if I want to
open it up but I guess at this point, I don't have much choice. Unless it is
normal for them to smell bad. Anyone ever experienced stinky reference
At 09:14 AM 12/4/2009, John Green wrote...
I always thought the microprocessor in a Z3801 had to talk to the GPS
receiver for it to work.
It does, which is why you would leave the existing VP in place, and
wire around its PPS signal. The Z3801A would then have no knowledge
that the PPS wasn't
I always thought the microprocessor in a Z3801 had to talk to the GPS
receiver for it to work. Guess not. Anyway, would a Resolution T work to
supply 1 PPS? Would it be better or worse than the existing Oncore? By the
way, my Z3801 is still stinky. I powered it off yesterday and I am going to
remov
Sorry Dave my mail irrelevant.motto READ THE EMAIL PROPERLY !!
I though you were talking about a floppy sized HD!!
DOH
Alan G3NYK
--- On Fri, 4/12/09, David C. Partridge wrote:
> From: David C. Partridge
> Subject: [time-nuts] OT: Wanted desperately - LS-120 disk drive
> To: teksco...@yaho
David I assume you are running some version of the dreaded windows :-)) Can I
suggest you do what I have just done in a similar position...Insert a Linux
"Live" CD (this is one that will run using only memory and taking the system
from the Cd without touching the HD) You need to set the bios
Floppy drives typically suffer from a couple of common problems, the first is
broken wires in the head. The second is hardened grease in the moving
parts of the head carriage, and the third is dead electrolytic capacitors.
-Chuck Harris
David C. Partridge wrote:
Internal 3.5" LS-120 Superdisk
Internal 3.5" LS-120 Superdisk floppy drive (ideally with black front, but
...). I'm after one in the standard 3.5" floppy drive size, not laptop.
The one in my main system just died :-(. I have a lot of stuff on LS-120
disks, and while I can read them on a system in another room and network th
Hi
Simple answer - yes.
More details:
The oven and oscillator supplies are split so you can regulate them
independently. Since there is very little current change (and very little
current) on the oscillator line you can regulate it pretty tightly.
The oven monitor reports the current being
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