[time-nuts] HP 5370B low frequency modulation

Björn Gabrielsson bg at lysator.liu.se
Thu Jul 26 16:23:09 EDT 2007


Hi Said,

Magnus might be busy until after the weekend.

After fixing my Rb - Thanks!!! - and collecting a few antennas, Magnus
headed for the wilderness with a car full of beer and music festival
stuff.

btw,

Is anyone running a FE-5608A 19"-rubidium? The main internal parts are a
5MHz FE-2204A VCXO, and the FE-5607E rubidium package.

--

   Björn


On Thu, July 26, 2007 20:51, SAIDJACK at aol.com said:

> Hi Magnus,
>
> I've had a board with what the manufacturer called "black pad" syndrom:
> the
> BGA literally popped off by just bending the PCB sufficiently. The solder
> joint  was useless.
>
> Is this caused by the problem you described?
>
> Also, what do you think is a better process: gold-flash, or
> gold-immersion?
>
> bye,
> Said
>
>
>
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