[time-nuts] Temperature controlled TCVCXO

David davidwhess at gmail.com
Sat May 14 17:43:51 EDT 2016


It is only a 5 digit multimeter.  The specifications for the
temperature controlled reference and amplifiers are 10 times better
than the basic accuracy.

On Sat, 14 May 2016 10:26:42 -0500, you wrote:

>Note that the 3450B has an accuracy of 10E-5.
>
>You're probably looking for something a lot better than that.
>
>Bill Hawkins 
>
>>-----Original Message-----
>>From: David
>>Sent: Friday, May 13, 2016 8:28 PM
>
>>It figures that HP would have done this if anybody had.  I am not that
>>familiar with their design history so thanks for bringing this to my
>>attention.
>
>>I did not find anything in the theory section of the original service
>>manual although it does have the schematic but K04BB has a supplement
>>which discusses the 3450A peltier chamber and circuit in detail.  They
>>even sort of mention that the gain of the peltier differs significantly
>>between heating and cooling.


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