[time-nuts] HP E1938A Oscillator

[Azelio Boriani]

Start by taking a look here:
http://www.leapsecond.com/museum/e1938a/

On Fri, Jul 5, 2013 at 7:23 AM, Perry Sandeen <sandeenpa at yahoo.com> wrote:
>
>
> List,
>
> I was looking on Ebay for some HP E1938A
> oscillators
>
> What I found listed were:
>
> HP E1938A 10 MHz Quartz Oscillator with EFC on PC
> board. $100 Fluke.l
>
> HP E1938-60201 Ovenized Crystal Oscillator  (on a PC board) $100 Tomy Chou
>
> HP E1938A Ovenized Crystal Oscillator  W/O a PC board for $50 and free shipping from  2010bluebook.
> My question is thus:  What does the PC board do?  All I need is a HP EFC oscillator that would
> be better that my HP 10811-60111’s.
>
> Do I need to worry that the E1938A’s without the
> board maybe of lessor quality than the others?
>
> Fluke.l says his units are good but not stellar.  The other venders say they have tested the
> units and guarantee them to be good.  If
> so, would it get better with aging?
>
> So what does the collective wisdom/experience of
> the group think?  TIA
>
> Regards,
>
> Perrier
>
>
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