[time-nuts] cheap 5V OCXO in 14DIP has about 1E-9 drift per day

[Peter Loron]

Hello, folks. I'm the seller of the 26MHz OCXOs. Please reply off list 
if you are interested in some. Thanks.

-Pete

On 04/06/2011 08:58 AM, Oz-in-DFW wrote:
> Who is the seller?
>
> On 3/28/2011 1:40 PM, beale wrote:
>> Just FYI, I'm not sure how this compares to other similar parts, but I'm seeing about +/- 1 ppb (1E-9) frequency drift per 24 hour period from one sample of the Pletronics OHM40480526, which I've had running for about 10 days now. It runs on +5V and after a warmup current of 250 mA for a few seconds, it draws about 60 mA steady state at room temperature.  I'm driving the tuning voltage on pin 1 from a separate +5V reference to avoid variations due to heater current shifts.  I use a simple resistive trimpot divider to set the voltage, this is not a GPSDO (yet :-).
>>
>> I'm sure most on this list have more refined tastes in oscillators than this one (and probably want 10 MHz instead of 26 MHz), but I thought it noteworthy because it is so cheap. These parts are currently available online for $2 each. I'm not affiliated with the seller.
>>
>> a few more details:
>> http://www.bealecorner.org/best/measure/time/Pletronics-26MHz-OCXO-tuning.pdf
>> http://www.bealecorner.org/best/measure/time/26MHz-osc-notes.txt
>>