[time-nuts] Thunderbolt mounting

[Bob Camp]

Hi

The TBolt is rated to 70C. It's a good bet that the OCXO is heating the crystal to > 85C.

Bob

On Jul 13, 2012, at 11:09 AM, Peter Gottlieb wrote:

>   What temperature does it try to maintain internally for the OCXO?  If
>   the external temperature is too close or over that temperature the
>   internal regulation loop won't work.
> 
> 
>   On 07/13/12, Bob Camp<lists at rtty.us> wrote:
> 
>   Hi
>   There's no real need to keep the TBolt at / below room temperature. A
>   constant temperature in the 40 to 50C range works just fine. There's
>   nothing inside that's going to take a major reliability hit from that
>   sort of temperature.
>   Bob
>   On Jul 13, 2012, at 10:17 AM, Peter Gottlieb wrote:
>> Oh, I have no vibrations from lorries, I'm all the way across the
>   ocean. ;)
>> 
>> My thought was to mount it in a constant temperature enclosure via
>   thermal insulating standoffs. The enclosure could be a PID controlled
>   Peltier CPU cooler run box, something COTS pretty much.
>> 
>> Peter
>> 
>> On Jul 13, 2012, at 10:04 AM, Chuck Forsberg WA7KGX N2469R
>   <[1]caf at omen.com> wrote:
>> 
>>> Apply the Peltier to the cabinet.
>>> Or put the Tbolt in a fridge.
>>> Mount the Tbolt on a granite slab inside the cabinet so lorries
>   won't affect it.
>>> 
>>> On 07/13/2012 04:55 AM, Azelio Boriani wrote:
>>>> Peltier cooler on top of the OCXO or on top of the TBolt?
>>>> 
>>>> On Fri, Jul 13, 2012 at 9:54 AM, Chuck Forsberg WA7KGX N2469R
>>>> <[2]caf at omen.com>wrote:
>>>> 
>>>>> How about a thermostatically controlled Peltier cooler?
>>>>> 
>>>>> 
>>>>> --
>>>>> Chuck Forsberg WA7KGX N2469R [3]caf at omen.com [4]www.omen.com
>>>>> Developer of Industrial ZMODEM(Tm) for Embedded Applications
>>>>> Omen Technology Inc "The High Reliability Software"
>>>>> 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430
>>>>> 
>>>>> 
>>>>> 
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>>> --
>>> Chuck Forsberg WA7KGX N2469R [10]caf at omen.com [11]www.omen.com
>>> Developer of Industrial ZMODEM(Tm) for Embedded Applications
>>> Omen Technology Inc "The High Reliability Software"
>>> 10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430
>>> 
>>> 
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