> Next time I power down mine is to integrate a new supply and back-up
May I recommend PowerPole connectors and frequent use of diode-OR. For
details see:
http://leapsecond.com/pages/powerpole/diode-or.htm
I got the inspiration when my Dad was in the hospital and I saw how they
did IV tubes with multiple injection points. It seemed so simple,
clever, reliable. Details [1] and graphic photo [2].
So now I use diode-OR "Y" connectors on all my long-term standards. It
allows me to replace either power supply live without interruption at
any time. Come to think of it, they call it an IV in the hospital. And
here in my lab the I is about 0.18 and V is 24 so my IV is 4 watts. ;-)
/tvb
[1] https://en.wikipedia.org/wiki/Intravenous_therapy
[2] https://en.wikipedia.org/wiki/File:ICU_IV_1.jpg
On 9/24/2020 12:38 PM, Magnus Danielson wrote:
Hi Tom,
I second this, these oscillators you want to power up and just leave for
them to settle and then keep powered.
Next time I power down mine is to integrate a new supply and back-up
batteries, which can be a recommended little exercise. Currently only
the H-maser is on battery backup.
Cheers,
Magnus
On 2020-09-24 01:25, Tom Van Baak wrote:
James Robbins wrote:
Oscilloquartz BVA has been sold.
To the time nut who ended up with this BVA -- do not worry if it looks
like it is broken when you power it up. These oscillators take their
time to warm up. Here is a test I did last year on a similar BVA
oscillator:
"Oscilloquartz 8600-series OCXO warm-up"
http://leapsecond.com/pages/osa-warm/
/tvb
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