Thank you everyone for the superb set of replies to this posting over the 
weekend. I'm sure I will have my 5071A boards working again shortly. Thanks 
also for the generous offers on- and off-list from people who do this 
professionally. The level of hands-on experience on this list is amazing.

If there's more to add to the thread in the coming week, perhaps send it to me 
off-list.

Thanks,
/tvb

----- Original Message ----- 
From: "Tom Van Baak" <t...@leapsecond.com>
To: "Discussion of precise time and frequency measurement" <time-nuts@febo.com>
Sent: Saturday, November 05, 2016 11:12 AM
Subject: [time-nuts] I love the smell of tantalum in the morning


See C13 in the attached photo. I need to replace some blown caps on a few 
boards [1]. In one instance the cap got so hot it melted itself off the board. 
Quiet convenient, actually -- it acts like its own fuse -- but I don't think 
the 5071 designers had that clever feature in mind.

Having not done SMT before, how should I do it with minimal risk to the very 
precious PCB. Or, what equipment should I use this as a good excuse to buy?

Thanks,
/tvb

[0] http://www.imdb.com/title/tt0078788/quotes
[1] http://leapsecond.com/museum/hp5071a/A1-mother.htm

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