OK Adrian, thank you. Probably it is a good candidate to be disciplined.
Ignacio
Adrian escribió:
> Ignacio,
>
> for details check:
> http://www.ko4bb.com/cgi-bin/manuals.pl?dir=HP_Agilent/HP_-_105
> Early 105A/B's came with the 00105-6013 OCXO, as covered by the above
> manual.
>
> Adrian
>
>
Ignacio,
for details check:
http://www.ko4bb.com/cgi-bin/manuals.pl?dir=HP_Agilent/HP_-_105
Early 105A/B's came with the 00105-6013 OCXO, as covered by the above
manual.
Adrian
EB4APL schrieb:
> Hi,
> Since there is plenty of experience here, I want to locate info about an
> OCXO. It is an HP
Hi,
Since there is plenty of experience here, I want to locate info about an
OCXO. It is an HP 00105-6013, that probably came from a Rb or Cesium
frequency standard. Al pins and connectors are labeled with its
function and even it has the crystal temp marked on the label.
TYA,
Ignacio
__
I thought I might make a couple of comments about the Geller SVR board (I am a
long time Time-Nuts reader, although sometimes only an occasional reader of the
archives).
The SVR board is nothing more than a high quality platform for a monolithic
reference chip. The goal of this project was t
I am surprised that helium reclamation pumps are not beginning to appear
as surplus. We are several (technological) generations into the period
where supercooled MRI magnets are present in every town over 10,000
population in the US. Medical MRI has been in use for around 20 yrs,
and though t
Glenn Little WB4UIV wrote:
> With TV stations shifting to digital, how would a surplus analog
> video distribution amplifier do?
>
> There should be a lot of high end amplifiers made by Grass Valley
> (Tektronix) available soon.
>
> These are used in a frame. The input loops through the frame. Ea
With TV stations shifting to digital, how would a surplus analog
video distribution amplifier do?
There should be a lot of high end amplifiers made by Grass Valley
(Tektronix) available soon.
These are used in a frame. The input loops through the frame. Each
amplifier has 6 isolated outputs. D
Hello Yuri, Neville,
interesting discussion about natural resources. I hear that with the global
soon-to-be-depression that some things may happen (sorry for the slightly
off-topic subject, but this may affect us Time Nuts too):
* Used high-end equipment will be available for fire-sale pric
Dave M wrote:
> Randy,
> There are a couple distribution amp projects on the RealHamRadio web site
> (http://www.realhamradio.com). One has 8 isolated 75-ohm outputs; the other
> has 3 non-isolated outputs. Here are the links to each:
>
> http://www.realhamradio.com/10mhz-video-amp.htm
> http:/
Randy Leifer wrote:
> Bigger Volt-nut here.
> ...albeit, less knowledgeable than most of you.
> I have been in the chase for the perfect volt.
> I have 2 JRL SCO-105 saturated cell references running 24/7.
> But checking it's accuracyI must rely on my cal'd HP3457 meter.
> Although, those cells
Bigger Volt-nut here.
...albeit, less knowledgeable than most of you.
I have been in the chase for the perfect volt.
I have 2 JRL SCO-105 saturated cell references running 24/7.
But checking it's accuracyI must rely on my cal'd HP3457 meter.
Although, those cells (6 total, 3 in each cabinet) ar
Dan Rae said the following on 12/13/2008 02:16 PM:
> Dave, the problem with those, and indeed the TAPR kit eventually, is
> that all the Maxim ICs involved have been discontinued, and are no
> longer easily sourced.
The MAX477 is indeed going away, but it appears to still be available
without r
Dave M wrote:
> Randy,
> There are a couple distribution amp projects on the RealHamRadio web site
> (http://www.realhamradio.com). One has 8 isolated 75-ohm outputs; the other
> has 3 non-isolated outputs. Here are the links to each:
>
> http://www.realhamradio.com/10mhz-video-amp.htm
> http:/
It would be nice if the second link had a source for the boards.
73, Dick, W1KSZ
-Original Message-
>From: Dave M
>Sent: Dec 13, 2008 11:43 AM
>To: time-nuts@febo.com
>Subject: Re: [time-nuts] Build my own dist. amp ??
>
>Randy,
>There are a couple distribution amp projects on the RealHa
Randy,
There are a couple distribution amp projects on the RealHamRadio web site
(http://www.realhamradio.com). One has 8 isolated 75-ohm outputs; the other
has 3 non-isolated outputs. Here are the links to each:
http://www.realhamradio.com/10mhz-video-amp.htm
http://www.realhamradio.com/g8lmx
saidj...@aol.com skrev:
> Hi Magnus,
>
> on our Fury system the phase relationship between the 1PPS (clean OCXO
> version) and the 10MHz is established during power-on, then held stable (it
> is
> generated by the same 10MHz crystal) unless it for some reason drifts more
> than
> +/-220ns
Rex wrote:
> Bruce Griffiths wrote:
>
>> For a 10MHz isolation amplifier you dont need any transistors much more
>> exotic than 2N3904's in an appropriate package.
>> 3 or 4 2N3904's per isolation amplifier stage will with careful design
>> and layout achieve a reverse isolation of more than 13
Hello,
Saturday, December 13, 2008, 1:40:47, Neville Michie wrote:
N> The problem with helium is that it comes out of oil wells.
N> It does not cost much because they were digging up the oil anyway.
N> If what they say about peak oil is true, in 30 years or so there will
N> be no
N> more helium a
Bruce Griffiths wrote:
> For a 10MHz isolation amplifier you dont need any transistors much more
> exotic than 2N3904's in an appropriate package.
> 3 or 4 2N3904's per isolation amplifier stage will with careful design
> and layout achieve a reverse isolation of more than 130dB.
>
>
> Bruce
>
>
Randy Leifer wrote:
> Can I build my own 10 MHz distribution amp, using fast opamps ?
> I have searched the archives, but all of the designs are fairly complex for
> me to build using "point-to-point" on a proto/perf board.
>
> I want to feed an oven-ized reference 10 MHz sine signal (50 ohm), as
Can I build my own 10 MHz distribution amp, using fast opamps ?
I have searched the archives, but all of the designs are fairly complex for me
to build using "point-to-point" on a proto/perf board.
I want to feed an oven-ized reference 10 MHz sine signal (50 ohm), as a master
clock for my:
HP 33
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