[time-nuts] HP5065A revival project, progress report

J. Forster jfor at quikus.com
Mon Oct 3 19:11:33 EDT 2011


My Rb has a few (at least) 109D Tantalums in it. These are rubber sealed,
silver cased units and tend to leak acid. You might take a look at them,
because the leads corrode away.

Best,

-John

================


> Hi Paul,
>
> On 04/10/11 00:18, paul swed wrote:
>> Magnus that good news. Especially even having 3 X 5065s.
>
> Please note that they are not all mine, but bringing them back to life
> together sure helps.
>
>> I really need to look at the a15 to see what caps you are talking about.
>> Then check my single
>> 5065 and make sure I am not headed in your direction.
>
> C8, C9 and C10 does not feel happy in either of the three units. Loosing
> legs is among the common hobbies for these caps.
>
> C11 is also replaced as it was also running warm.
>
> C5 is my main suspect for being bad, but it was not my main focus this
> evening.
>
> It's really cheap to replace these caps, doing it in advance makes it
> much cheaper and easier.
>
> I also realized that my trimming experience with these will ripple over
> to the trimming of other large rubidiums in my lab. One of the trimmings
> I've learned to do on the HP5065A will surely help to improve the
> performance of the other rubidiums.
>
> Cheers,
> Magnus
>
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