On Sun, 05 Dec 2010 18:56:10 -0600, flipper wrote:

On Mon, 06 Dec 2010 01:05:57 +0100, Lucas wrote:

On Sun, 05 Dec 2010 16:33:10 -0600, flipper wrote:

On Sun, 05 Dec 2010 20:13:03 +0100, Lucas wrote:

On Sun, 05 Dec 2010 12:25:07 -0600, John Fields
wrote:

On Sun, 05 Dec 2010 18:52:04 +0100, Lucas wrote:

hallo
I have a double oven OCXO (type MV89A , Marion (C-max)) -
10 MC , power supply = 12 V -current is 350 a 400 mA

Is it normal that the temperature of the outside housing, is SO hot
that it is hardly can holding in the hand
(measurement = + 60 ° Celsius) ?
the room temperature is +/- 23 °C

---
+/- 23C about what?

---
JF


JF,
23 °Celsius is the room temperature where the is OCXO is in test,
for the moment the OCXO is not build in a box ,
the normal temperature in the house is +/- 23 degrees Celsius, there
is the OCXO in test

What's confusing him is putting +/- in front of the 23C

Lucas


Sorry, maybe a bit confusing....:

the temperature is +23 C in the room - the normal temparature
in a living room.... fluctuation is maybe a few degrees --

That's what I presumed since it's what I would expect.

I do not mean that the temperaturature fluctuate from -23C to +23C
degrees, NO , no ...... the temperture is 'about' 23 ° Celsiuis

Putting +/- in front implies it's a range or tolerance spec, like 50C
+/- 2C meaning 48C-52C with 50C being nominal. That's why he asked
"around what?"

The OCXO is in test, in these room tempearture ,
but the housing of the OCXO (type MV89A) in the room temp ( 23 C)
is about 60 C -- and ' very hot ' to hold in the hand....

the question: is this temp of the outside 'OCXO housing' normal ?

Can't really help much there (I was just trying to help the
communication) but I wouldn't be surprised. Interior is probably on
the order of 70C-80C and something that small isn't likely to have a
heck of a lot of thermal insulation. But I'm just guessing.


Lucas


maybe , I had beter explaened with '23 C' ....about that temperature,
within an tolerance of a few degrees..