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 Post subject: Anybody need a Klystron?
PostPosted: Nov Tue 05, 2019 3:51 am 
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Location: Norfolk, VA
Not exactly the miniature type we saw in aviation......

US DOE Thomas Jefferson Lab, Newport News VA:

https://www.publicsurplus.com/sms/all,v ... uc=2457487

Attachment:
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 Post subject: Re: Anybody need a Klystron?
PostPosted: Nov Wed 06, 2019 1:52 pm 
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Lessee, big Beryllium warning on the front of the thing. That might result in a big hazmat fee for the owners if they scrap, so best sell to a sucker. Find someone who actually wants it. Good luck with that. Useless for anything I know of. Best bid five bucks. Not even any good as a display item. Too big bulky and ugly. Pass.

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 Post subject: Re: Anybody need a Klystron?
PostPosted: Nov Wed 06, 2019 5:29 pm 
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wazz wrote:
Lessee, big Beryllium warning on the front of the thing. That might result in a big hazmat fee for the owners if they scrap, so best sell to a sucker.


ATTENTION? That's an informational label. A warning would carry WARNING, CAUTION, or DANGER.

Solid monolithic forms of fired Beryllium Oxide ceramic components will not present any meaningful health risks. There's no HAZMAT labeling for BeO - you can dispose of it in municipal trash. Same with BeCu tools, pipes and fittings.

https://www.americanberyllia.com/safety

BeO (Berlox) is in all consumer and commercial microwave ovens. I can also name about 20 or so "lighthouse" UHF/Microwave tubes that use BeO/Berlox and carry no hazmat classification with the feds.

Most BeO warnings are to warn of it's fragility, and to further warn not to damage or modify it's structure.
BeO can become dangerous if ground, drilled, milled, filed, sawn, pulverized or powdered. Inhalation of airborne beryllium oxide particles, which are smaller than 10 microns, may cause a serious lung disorder (Berylliosis) in susceptible individuals.

We had gyroscopes in Naval Aviation with Beryllium frames (for their non-magnetic properties). My techs had to go for mandated Berylliosis screenings, and have quarterly safety briefs on such. Every now and then a gyro would "eat" itself, and create a nightmare HAZMAT disposal issue, but my tech were up on what to do - all the bagging and tagging.

Me? I had 11 months of being the point man for Beryllium at the Naval Safety Center......(I got promoted out of the position. :P )

Some tube collectors covet their klystron collections. I know of one with about 20 Raytheon Klystrons - he got 6 (all the same type) from me.

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 Post subject: Re: Anybody need a Klystron?
PostPosted: Nov Wed 06, 2019 7:39 pm 
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That does not make it any more desirable, to me! Just look at it.

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 Post subject: Re: Anybody need a Klystron?
PostPosted: Nov Wed 06, 2019 8:58 pm 
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wazz wrote:
That does not make it any more desirable, to me! Just look at it.


I don't want it.....that's for sure. Just puttin' it out there for the collectors of klystrons. Probably a one-off. The CEBAF at Jefferson Labs requires a lot of non-COTS stuff. They do real science there!

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 Post subject: Re: Anybody need a Klystron?
PostPosted: Nov Thu 07, 2019 12:41 pm 
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Beauty is in the eye of the beholder. :wink:

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 Post subject: Re: Anybody need a Klystron?
PostPosted: Nov Thu 07, 2019 7:17 pm 
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Location: Radio Heaven, North Carolina, near Charlotte, 28106-3015
I'd love to have it, but wouldn't want to pay for shipping.

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 Post subject: Re: Anybody need a Klystron?
PostPosted: Nov Fri 08, 2019 1:43 am 
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Findm-Keepm wrote:
wazz wrote:
That does not make it any more desirable, to me! Just look at it.


I don't want it.....that's for sure. Just puttin' it out there for the collectors of klystrons. Probably a one-off. The CEBAF at Jefferson Labs requires a lot of non-COTS stuff. They do real science there!



I know. Thanks for putting it out there if just to show the picture. But for me, it is large, it is ugly and it is useless. Would take a serious collector of stuff to go for it I would think. And visitors of non electronic background would think it was an old pump or something.

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 Post subject: Re: Anybody need a Klystron?
PostPosted: Nov Fri 08, 2019 3:36 am 
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I found this klystron (RK-5876) in a batch of tubes I recently acquired. Doubt anybody has a use for it now days.


Attachments:
zz.JPG
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 Post subject: Re: Anybody need a Klystron?
PostPosted: Nov Fri 08, 2019 4:48 am 
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Location: Norfolk, VA
Ron in Radio Heaven wrote:
I'd love to have it, but wouldn't want to pay for shipping.


It's local for me. One caveat - DOE Jefferson Labs has to generate a fraction of what they paid, so their reserves are often very high for some items. Still, a pair of Tek scope carts went for $18.50 last month. I was a token bidder at $18, and got outbid :x during my commute to work. By the time lunch rolled around, the auction ended.

https://www.publicsurplus.com/sms/all,v ... uc=2451364

PS. Jefferson Labs has an annual open house. Very informative and entertaining - the CEBAF is worth the day alone. A monstrosity doing science I'll probably never understand fully. :lol:

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 Post subject: Re: Anybody need a Klystron?
PostPosted: Nov Fri 08, 2019 11:56 pm 
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Here are some spare klystrons that I have for a piece of equipment at work. They are similar to the one currently at auction. This type of klystron is still being used in new equipment. The klystron here (date code 0417) cost about $60k in 2004.

Image

Image

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 Post subject: Re: Anybody need a Klystron?
PostPosted: Nov Sat 09, 2019 12:07 am 
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Location: Dayton Ohio
When I worked at the two-way radio shop, I remember seeing some red colored klystron tubes used for police speed radar guns.

It has been way to long to remember the details, but I think they looked something like this.

-Steve


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 Post subject: Re: Anybody need a Klystron?
PostPosted: Nov Sat 09, 2019 5:28 am 
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CPI is actually an offshoot of Varian. If you look up CPI's address (811 Hansen Way, Palo Alto) you'll see it's adjacent to Varian Medical's main campus. Used to all be the same company.

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