time-nuts on behalf of Richard
> Solomon
> Sent: Friday, October 25, 2019 2:52 PM
> To: Discussion of precise time and frequency measurement
>
> Subject: Re: [time-nuts] HP5071A with bad tube can I get one used?
>
> When did the spelling of Cesium
> change ? As far back
as follows: Proper name CAESIUM;
> > Class 4.3; UN No. UN1407; Packing group I; Quantity and type of packing:
> 1
> > Steel Container, 1A1 0.009 kg Overpack Used; Packing inst. 412.
> > Cross out the words: “Passenger Aircraft” and “Radioactive”. Fill all
> > relevant fields such as Ship
>
> act...@hotmail.com
>
> "Peace is not the absence of violence, but the presence of Justice" Both
> MLK and Albert Einstein
>
> ____
> From: time-nuts on behalf of Bob kb8tq
>
> Sent: Thursday, October 24, 2
> Well, I started shipping them back to the factory in the 1990’s and
> did so a number of times since then. If there was an exemption, the
> factory was not aware of it. They were the driver for being sure
> it was shipped as hazmat. Each time (knowing what the issues would
> be), I
e-nuts on behalf of Bob kb8tq
>
> Sent: Thursday, October 24, 2019 12:23 PM
> To: Taka Kamiya ; Discussion of precise time and
> frequency measurement
> Subject: Re: [time-nuts] HP5071A with bad tube can I get one used?
>
> Hi
>
> Based on running a high performan
Bob kb8tq
>
> Sent: Thursday, October 24, 2019 12:23 PM
> To: Taka Kamiya ; Discussion of precise time and
> frequency measurement
> Subject: Re: [time-nuts] HP5071A with bad tube can I get one used?
>
> Hi
>
> Based on running a high performance tube version of t
t Einstein
From: time-nuts on behalf of Bob kb8tq
Sent: Thursday, October 24, 2019 12:23 PM
To: Taka Kamiya ; Discussion of precise time and frequency
measurement
Subject: Re: [time-nuts] HP5071A with bad tube.... can I get one used?
Hi
Based on running a high performance tu
I bought this HP5071A knowing it didn't lock and paid very little for it. I
think I'll keep it for a while hoping another one shows up. I know there is a
ROM in the tube with serial number and a poem. Do you know if the unit starts
its life as high performance unit, does it have to stay that
Hi
No idea about how well things work if you swap a “normal” tube into a
“high performance” chassis. One would *guess* that there are numbers
somewhere relating to beam current. The high performance tubes run
a (much) higher beam current than the standard tubes. Since that drops
off towards end
Hi
Based on running a high performance tube version of the 5071A for a number of
years, the
tubes last about 5 to 7 years when run 24/7/365. Once they die, the practical
($$$)
alternative is to send the beast back to the factory for a new tube. Indeed
given the price
and the complexity of
Taka,
The chance of finding a cheap, used, working, replacement tube is rather
small. But...
1) One approach is keep looking for another 5071A that's not working and
selling cheap and hope very much that it's just the electronics that's
bad and the tube is still good. Then you can create
I have an HP5071A with a high performance option that does not work. All of my
tests indicate the faulty component is a tube itself. Buying a new tube is way
out of my budget. I am now torn between parting it out and see what I can use
and keeping it intact with hope something might pop up.
12 matches
Mail list logo
