Interesting, mine does not have a HP tag, just a dot-matrix printed label
with one line. Hopefully by next spring I'll be set up to where I can do
some 'real' checking of the the oscillators I have.
Thank you for the enlightenment
-pete
On Wed, Aug 5, 2015 at 8:13 AM, Charles Steinmetz
measurement
Subject: Re: [time-nuts] HP10811 dual oven
Hi Dan,
I would be interested on that document too Thank you in advance
73
KJ6UHN
Alex
On 8/3/2015 12:40 PM, Dan Kemppainen wrote:
Hi,
If you search the internet, you should come across a design by Warren
S. It's basically the same type
Charles
When I made the offer for the unit, I took the chance that it might be, I
saw that the s/n was 3505A02095, the same HP prefix
on my other dead dual oven 10811.
When I got it, my luck won this time, one of the coax cables is tagged 10
MHz and the other EFC.
A bit of background
The
Pete wrote:
I have a HP / Symmetricom unit that has a dual oven 10811 that was part of
a telecom master clock distribution system that was only meant to run in a
controlled environment.
I'm not 100% positive, but I believe the OCXO in your photos is not
an HP 10811, but rather the
Pete
Always the interesting tid bits.
Thats the same double oven in the HP Z3801
I have one that went nuts. What a gooey mess. I set the whole thing on the
shelf as a someday project. The Z3801 actually has something besides that
as an issue.
Regards
Paul.
WB8TSL
On Tue, Aug 4, 2015 at 12:47 PM,
Mark Posted
I laid out a through-hole version of Warren's board in Eagle
and had OSHPARK fab up three of them.
I sent one to Warren and am using the other two.
The one mod I made was to use a single darlington TO-220 instead
of the two transistor stage that Warren used.
They seem to work quite
Bob/TNuts ..
I have a HP / Symmetricom unit that has a dual oven 10811 that was part of
a telecom master clock distribution system that was only meant to run in a
controlled environment.
https://goo.gl/photos/xpfnxRegRyuykLSy5
Just another data point
-pete
On Sun, Aug 2, 2015 at 3:26 PM,
Hi Dan,
I would be interested on that document too
Thank you in advance
73
KJ6UHN
Alex
On 8/3/2015 12:40 PM, Dan Kemppainen wrote:
Hi,
If you search the internet, you should come across a design by Warren
S. It's basically the same type of oven controller that is used in the
internal oven
Hi,
If you search the internet, you should come across a design by Warren S.
It's basically the same type of oven controller that is used in the
internal oven for that oscillator.
I did a surface mount version of his design a while back. I've been
running it for quite a while now. IMO it is
Hi
The “external” heater on the Z3801 OCXO is only needed if you are regularly
running below -20C in your environment. Other than
the alarm signal, there is no harm in letting it simply shut off forever.
Bob
On Aug 2, 2015, at 8:56 AM, tim...@timeok.it wrote:
Hi,
I have seen, but I do
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