[time-nuts] Fail on HP5065A PSU repair

Magnus Danielson magnus at rubidium.dyndns.org
Mon Apr 2 11:45:59 EDT 2012


Hi Joe,

On 04/02/2012 07:33 AM, J. L. Trantham wrote:
> Magnus,
>
> If you are referring to the A15 board, I may have a spare.
>
> I have been collecting parts for a couple of years and I *think* have
> everything except the A12A1 Spectral Lamp Oscillator Assembly.  I have found
> some dead parts on some boards that I have replaced and, as best I can tell
> from measurements on the A12 RVFR Assembly, everything is OK but I can't go
> forward until I get the Rb lamp assembly itself.
>
> If I can find that, I can bring this to a conclusion (happy, I hope).  Once
> done, there will be some 'leftovers', one of which will be an A15 board.

Yes, it's the A15 board. I've run it and trimmed it up with another A15 
board, so I know the rest of the unit is working. If you can find it I 
would be greatfull.

Cheers,
Magnus

>
> Joe
>
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Magnus Danielson
> Sent: Sunday, April 01, 2012 6:45 PM
> To: Time-Nuts
> Subject: [time-nuts] Fail on HP5065A PSU repair
>
> Fellow time-nuts,
>
> I'm sure you all have done this at least once. Repaired something up,
> feeling happy about it, slap it in and then if fails on you again.
>
> The transformer in the DC-DC converter failed again. Popped the lid even.
>
> *sigh* I think I will have to rebuild that from scratch.
>
> Cheers,
> Magnus
>
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