Hi

On Aug 29, 2013, at 1:20 PM, Tom Knox <[email protected]> wrote:

> I could be wrong but I thought when I priced these for work the BVA 8600 AT 
> cut was substantially cheaper then that. I think the $11,000 is more in line 
> with a BVA 8607 SC cut with an option. But from my point of view the close in 
> Phase Noise on this particular oscillator is what dictates it's value. These 
> BVA 8600's typically range from 110 to better then 120 dB @ 1Hz which is a 
> big difference. If this BVA is at the low phase noise end of the range it 
> could be a real bargain at $3000. 
> Another option in the $3000 range is the Wenzel Blue Top ULPN oscillators. It 
> may not match a good BVA inside 1Hz but will have at least a 20dB better 
> noise floor from about 10KHz out. The other plus with a BVA is the the Quartz 
> is capacitive coupled where most other oscillators have metal deposited 
> directly on the Quartz which will interact over time

I know of no such interaction in modern quartz resonators - what are you 
referring to here? Your Wentzel part likely has either an aluminum electrode or 
a chrome / gold electrode system on it. Neither one "interacts" with quartz. 

Bob

> and potentially diminish performance. As Tom and other explained prices go up 
> exponentially for ULPN oscillators.
> Thomas Knox
> 
> 
> 
>> Date: Thu, 29 Aug 2013 12:53:47 -0400
>> From: [email protected]
>> To: [email protected]
>> Subject: Re: [time-nuts] B.V.A. 8600 for sale
>> 
>> OK but like a new car the value drops 50% off the lot.
>> Anyway you slice it as nice as this might be I will stick with the $100 and
>> less 10544/1081s 105s and sulzers. I may be a time-nut. But I am not
>> time-Nutz.
>> Perhaps for the lab that need it that is a darned good price.
>> Regards
>> Paul
>> WB8TSL/1
>> 
>> 
>> On Thu, Aug 29, 2013 at 11:39 AM, Said Jackson <[email protected]> wrote:
>> 
>>> Yup, I heard price goes up from there...
>>> 
>>> Sent From iPhone
>>> 
>>> On Aug 29, 2013, at 8:37, "Poul-Henning Kamp" <[email protected]> wrote:
>>> 
>>>> In message <[email protected]>, Said Jackson
>>> writes:
>>>> 
>>>>> These are about $11,000 or so new if I am not mistaken.
>>>> 
>>>> Depends what options it has...
>>>> 
>>>> --
>>>> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
>>>> [email protected]         | TCP/IP since RFC 956
>>>> FreeBSD committer       | BSD since 4.3-tahoe
>>>> Never attribute to malice what can adequately be explained by
>>> incompetence.
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