[time-nuts] Did a member of time-nuts buy this?
kb8tq at n1k.org
Sun Dec 7 14:03:07 EST 2014
Of the $20K to $30K that a new tube costs, I doubt the material and basic assembly adds up to over $5K. The rest of the cost is the final assembly / test / yield / re-test / tooling / labor. That’s doing them in as high a volume as anybody does them. You will need either a couple of H-Masers or a set of Cs’s running and in good condition simply to make sure you got them put together right ….
> On Dec 7, 2014, at 12:15 PM, Scott McGrath <scmcgrath at gmail.com> wrote:
> If you could get the rebuild cost to 3-5K there probably would be a market.
> But that would be more of a vacuum nuts project as high vacuum systems are a black art.
> You would need to open the physics package with a lathe Remove the Cs residue replace the ionizer and poss the mass spec. Put a new Cs ampule in place. Reweld the housing and evacuate it to ion pump levels.
> Not an easy task. Doable but not easy and since the primary customer for Cs is the price no object crew who just buys new. Not much of a driver to develop a process
> Content by Scott
> Typos by Siri
>> On Dec 6, 2014, at 1:47 PM, "Dr. David Kirkby (Kirkby Microwave Ltd)" <drkirkby at kirkbymicrowave.co.uk> wrote:
>>> On 6 Dec 2014 18:33, "Bert Kehren via time-nuts" <time-nuts at febo.com> wrote:
>>> be done, the real issue who would buy one people that need
>>> Cesium will pay the price for a new one and time nuts would not spend the
>>> money for a working rebuild tube. Where is the market?
>> There's a professional market for thermionic tubes above 10 kW or so.
>> Commercial companies will buy rebuilt tubes. Why should it be any different
>> with a Cs tube?
>> I just searched some of my old emails on time-nuts, and can see it is felt
>> to be impractical to rebuild a tube.
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