[time-nuts] HP 5071A Electron Multiplier of Cesium Beam Tube

[Don Latham]

darn. I should have made clear I meant on the part of Hp/Agilent!!!
No flames please.
Don
----- Original Message ----- 
From: "Don Latham" <djl at montana.com>
To: <richard at karlquist.com>; "Discussion of precise time and frequency 
measurement" <time-nuts at febo.com>
Sent: Sunday, September 06, 2009 11:58 PM
Subject: Re: [time-nuts] HP 5071A Electron Multiplier of Cesium Beam Tube


> yet another reason not to buy a CS clock. What kind of self-destructive bs 
> is this?
> Don
>
> ----- Original Message ----- 
> From: "Rick Karlquist" <richard at karlquist.com>
> To: "Discussion of precise time and frequency measurement" 
> <time-nuts at febo.com>
> Sent: Sunday, September 06, 2009 9:54 PM
> Subject: Re: [time-nuts] HP 5071A Electron Multiplier of Cesium Beam Tube
>
>
>> John Miles wrote:
>>> Of course, you'd hear the same thing if you asked the modern-day HP if
>>> they
>>> could refurbish an inkjet cartridge. :)  Not the same thing, and not the
>>> same company, I know... but still, HP had no incentive to try very hard 
>>> to
>>> develop a reconditioning process, at least before Datum started selling
>>> replacement tubes.
>>>
>>
>> FWIW:
>>
>> Wait a minute.  Datum owns Symmetricom which bought HP/Agilent's
>> CBT production line and admits that their tubes were never as
>> good as HP/Agilent's tubes.  The 5071, as opposed to the 5061, has
>> a ROM with a password in the CBT so that only OEM tubes will work.
>> The password consists of a poem written by Len Cutler.  The poem is
>> copyrighted so that it would be illegal for a competitor to simply
>> reproduce it, according to Len.
>>
>> Rick Karlquist N6RK
>>
>>
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