[time-nuts] HP 55300A

Bob Camp kb8tq at n1k.org
Sun Nov 20 12:30:04 EST 2016


At normal room temperatures, you simply can not run enough air past the OCXO
to “cool it to much”. The OCXO heater will simply put out a bit more power as you
increase the air flow. That’s not to say that the performance will improve any as the
OCXO is quickly following any twitch or bump in the room temperature. 


> On Nov 20, 2016, at 9:41 AM, Gary Neilson <gary at deepskyridge.com> wrote:
> I recently got a HP55300A on ebay for parts. It works fine but runs on 48V.
> I am going  to install a AC supply inside and also place a fan on the top for cooling.
> I hope the air flow will not cool the OCXO too much.
> I am also looking for documentation. I have the User manual but am looking for the Programming Manual.
> Thanks
> Gary Neilson
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